--- a
+++ b/data/47-148.txt
@@ -0,0 +1,479 @@
+5.1633	1.1400
+6.2300	1.0667
+7.2600	1.0300
+8.2800	1.0200
+9.2900	1.0100
+10.2600	0.9700
+11.2433	0.9833
+12.2400	0.9967
+13.2233	0.9833
+14.1967	0.9733
+15.1800	0.9833
+16.1267	0.9467
+17.1000	0.9733
+18.0800	0.9800
+19.0533	0.9733
+20.0333	0.9800
+21.0100	0.9767
+21.9900	0.9800
+22.9600	0.9700
+23.9300	0.9700
+24.9033	0.9733
+25.8767	0.9733
+26.8700	0.9933
+27.8700	1.0000
+28.8733	1.0033
+29.8667	0.9933
+30.8733	1.0067
+31.8667	0.9933
+32.8700	1.0033
+33.8600	0.9900
+34.8533	0.9933
+35.8500	0.9967
+36.8700	1.0200
+37.8767	1.0067
+38.8900	1.0133
+39.8833	0.9933
+40.8900	1.0067
+41.9033	1.0133
+42.8900	0.9867
+43.8700	0.9800
+44.8600	0.9900
+45.8233	0.9633
+46.7967	0.9733
+47.7800	0.9833
+48.7367	0.9567
+49.6933	0.9567
+50.6600	0.9667
+51.6333	0.9733
+52.6200	0.9867
+53.5833	0.9633
+54.5667	0.9833
+55.5267	0.9600
+56.5233	0.9967
+57.5067	0.9833
+58.4767	0.9700
+59.4633	0.9867
+60.4300	0.9667
+61.3900	0.9600
+62.3467	0.9567
+63.3067	0.9600
+64.2733	0.9667
+65.2467	0.9733
+66.2367	0.9900
+67.2167	0.9800
+68.1900	0.9733
+69.1433	0.9533
+70.1033	0.9600
+71.0600	0.9567
+72.0167	0.9567
+72.9700	0.9533
+73.9167	0.9467
+74.8500	0.9333
+75.7900	0.9400
+76.7567	0.9667
+77.7267	0.9700
+78.6867	0.9600
+79.6467	0.9600
+80.6133	0.9667
+81.5833	0.9700
+82.5767	0.9933
+83.5367	0.9600
+84.5033	0.9667
+85.4933	0.9900
+86.4600	0.9667
+87.4133	0.9533
+88.4267	1.0133
+89.4233	0.9967
+90.4067	0.9833
+91.3700	0.9633
+92.3467	0.9767
+93.3400	0.9933
+94.3167	0.9767
+95.3033	0.9867
+96.2900	0.9867
+97.2500	0.9600
+98.2567	1.0067
+99.2433	0.9867
+100.2233	0.9800
+101.1900	0.9667
+102.1767	0.9867
+103.1733	0.9967
+104.1900	1.0167
+105.1867	0.9967
+106.1967	1.0100
+107.1967	1.0000
+108.1867	0.9900
+109.1733	0.9867
+110.1533	0.9800
+111.1500	0.9967
+112.1533	1.0033
+113.1500	0.9967
+114.1500	1.0000
+115.1567	1.0067
+116.1700	1.0133
+117.1800	1.0100
+118.1900	1.0100
+119.1700	0.9800
+120.1800	1.0100
+121.1867	1.0067
+122.2167	1.0300
+123.2233	1.0067
+124.2300	1.0067
+125.2367	1.0067
+126.2567	1.0200
+127.2933	1.0367
+128.3467	1.0533
+129.3267	0.9800
+130.3267	1.0000
+131.3333	1.0067
+132.3167	0.9833
+133.3333	1.0167
+134.3500	1.0167
+135.3667	1.0167
+136.3933	1.0267
+137.4100	1.0167
+138.4100	1.0000
+139.4200	1.0100
+140.4200	1.0000
+141.4667	1.0467
+142.5033	1.0367
+143.5133	1.0100
+144.5300	1.0167
+145.5367	1.0067
+146.5433	1.0067
+147.5300	0.9867
+148.5267	0.9967
+149.5133	0.9867
+150.5067	0.9933
+151.4967	0.9900
+152.4833	0.9867
+153.4733	0.9900
+154.4833	1.0100
+155.4867	1.0033
+156.4733	0.9867
+157.4567	0.9833
+158.4667	1.0100
+159.4567	0.9900
+160.4600	1.0033
+161.4300	0.9700
+162.3967	0.9667
+163.3500	0.9533
+164.3267	0.9767
+165.3000	0.9733
+166.2700	0.9700
+167.2367	0.9667
+168.2167	0.9800
+169.1700	0.9533
+170.1367	0.9667
+171.0867	0.9500
+172.0600	0.9733
+173.0267	0.9667
+174.0033	0.9767
+174.9800	0.9767
+175.9400	0.9600
+176.9300	0.9900
+177.9133	0.9833
+178.8900	0.9767
+179.8567	0.9667
+180.8500	0.9933
+181.8367	0.9867
+182.8300	0.9933
+183.8467	1.0167
+184.8400	0.9933
+185.8333	0.9933
+186.7967	0.9633
+187.7733	0.9767
+188.7233	0.9500
+189.6967	0.9733
+190.6700	0.9733
+191.6400	0.9700
+192.6267	0.9867
+193.5967	0.9700
+194.5867	0.9900
+195.5567	0.9700
+196.5333	0.9767
+197.5233	0.9900
+198.5133	0.9900
+199.4967	0.9833
+200.4800	0.9833
+201.4800	1.0000
+202.4633	0.9833
+203.4567	0.9933
+204.4633	1.0067
+205.4467	0.9833
+206.4233	0.9767
+207.4167	0.9933
+208.4233	1.0067
+209.3900	0.9667
+210.3633	0.9733
+211.3567	0.9933
+212.3267	0.9700
+213.3100	0.9833
+214.3167	1.0067
+215.3200	1.0033
+216.3233	1.0033
+217.3000	0.9767
+218.2867	0.9867
+219.2600	0.9733
+220.2300	0.9700
+221.2133	0.9833
+222.2033	0.9900
+223.1967	0.9933
+224.1833	0.9867
+225.1633	0.9800
+226.1333	0.9700
+227.1400	1.0067
+228.1500	1.0100
+229.1400	0.9900
+230.1233	0.9833
+231.1200	0.9967
+232.0867	0.9667
+233.0467	0.9600
+234.0467	1.0000
+235.0333	0.9867
+236.0233	0.9900
+237.0200	0.9967
+238.0267	1.0067
+239.0100	0.9833
+240.0100	1.0000
+241.0067	0.9967
+242.0000	0.9933
+242.9800	0.9800
+243.9467	0.9667
+244.9267	0.9800
+245.9300	1.0033
+246.9300	1.0000
+247.9167	0.9867
+248.9267	1.0100
+249.9133	0.9867
+250.9167	1.0033
+251.9100	0.9933
+252.9233	1.0133
+253.9367	1.0133
+254.9400	1.0033
+255.9500	1.0100
+256.9633	1.0133
+257.9767	1.0133
+258.9833	1.0067
+259.9967	1.0133
+261.0067	1.0100
+262.0300	1.0233
+263.0300	1.0000
+264.0200	0.9900
+265.0300	1.0100
+266.0133	0.9833
+266.9900	0.9767
+267.9700	0.9800
+268.9333	0.9633
+269.9300	0.9967
+270.9000	0.9700
+271.8800	0.9800
+272.8733	0.9933
+273.8467	0.9733
+274.8333	0.9867
+275.8300	0.9967
+276.8100	0.9800
+277.8067	0.9967
+278.8000	0.9933
+279.7967	0.9967
+280.7833	0.9867
+281.7700	0.9867
+282.7633	0.9933
+283.7500	0.9867
+284.7200	0.9700
+285.7000	0.9800
+286.6900	0.9900
+287.6800	0.9900
+288.6533	0.9733
+289.6333	0.9800
+290.6100	0.9767
+291.6000	0.9900
+292.6067	1.0067
+293.6367	1.0300
+294.6433	1.0067
+295.6367	0.9933
+296.6367	1.0000
+297.6367	1.0000
+298.6167	0.9800
+299.6000	0.9833
+300.5867	0.9867
+301.5667	0.9800
+302.5733	1.0067
+303.5667	0.9933
+304.5833	1.0167
+305.5833	1.0000
+306.5800	0.9967
+307.5633	0.9833
+308.5667	1.0033
+309.5300	0.9633
+310.4933	0.9633
+311.5100	1.0167
+312.5300	1.0200
+313.5400	1.0100
+314.5167	0.9767
+315.5000	0.9833
+316.4867	0.9867
+317.4633	0.9767
+318.4700	1.0067
+319.4800	1.0100
+320.4700	0.9900
+321.4467	0.9767
+322.4467	1.0000
+323.4400	0.9933
+324.4100	0.9700
+325.4167	1.0067
+326.4000	0.9833
+327.4067	1.0067
+328.3900	0.9833
+329.3833	0.9933
+330.3733	0.9900
+331.3533	0.9800
+332.3433	0.9900
+333.3233	0.9800
+334.3400	1.0167
+335.3400	1.0000
+336.3367	0.9967
+337.3367	1.0000
+338.3333	0.9967
+339.3333	1.0000
+340.3400	1.0067
+341.3467	1.0067
+342.3333	0.9867
+343.3200	0.9867
+344.3167	0.9967
+345.3233	1.0067
+346.3433	1.0200
+347.3433	1.0000
+348.3500	1.0067
+349.3433	0.9933
+350.3233	0.9800
+351.3033	0.9800
+352.2700	0.9667
+353.2500	0.9800
+354.2400	0.9900
+355.2433	1.0033
+356.2400	0.9967
+357.2133	0.9733
+358.1867	0.9733
+359.1667	0.9800
+360.1200	0.9533
+361.0733	0.9533
+362.0433	0.9700
+363.0100	0.9667
+363.9733	0.9633
+364.9567	0.9833
+365.9300	0.9733
+366.9100	0.9800
+367.8700	0.9600
+368.8500	0.9800
+369.8200	0.9700
+370.8133	0.9933
+371.7867	0.9733
+372.7500	0.9633
+373.7267	0.9767
+374.6900	0.9633
+375.6667	0.9767
+376.6467	0.9800
+377.6233	0.9767
+378.5833	0.9600
+379.5300	0.9467
+380.5033	0.9733
+381.5133	1.0100
+382.4767	0.9633
+383.4700	0.9933
+384.4433	0.9733
+385.4400	0.9967
+386.4467	1.0067
+387.4267	0.9800
+388.3967	0.9700
+389.4000	1.0033
+390.3800	0.9800
+391.3700	0.9900
+392.3433	0.9733
+393.3300	0.9867
+394.3367	1.0067
+395.3267	0.9900
+396.3300	1.0033
+397.3233	0.9933
+398.3367	1.0133
+399.3367	1.0000
+400.3600	1.0233
+401.3800	1.0200
+402.3567	0.9767
+403.3767	1.0200
+404.3767	1.0000
+405.3967	1.0200
+406.4100	1.0133
+407.4000	0.9900
+408.4133	1.0133
+409.4233	1.0100
+410.4367	1.0133
+411.4600	1.0233
+412.4867	1.0267
+413.4933	1.0067
+414.5100	1.0167
+415.5267	1.0167
+416.5133	0.9867
+417.5200	1.0067
+418.5233	1.0033
+419.5533	1.0300
+420.5500	0.9967
+421.5533	1.0033
+422.5667	1.0133
+423.6000	1.0333
+424.6167	1.0167
+425.6333	1.0167
+426.6433	1.0100
+427.6367	0.9933
+428.6333	0.9967
+429.6333	1.0000
+430.6433	1.0100
+431.6467	1.0033
+432.6633	1.0167
+433.6767	1.0133
+434.6700	0.9933
+435.6800	1.0100
+436.6967	1.0167
+437.6967	1.0000
+438.7000	1.0033
+439.7367	1.0367
+440.7533	1.0167
+441.7700	1.0167
+442.7800	1.0100
+443.8033	1.0233
+444.8067	1.0033
+445.8167	1.0100
+446.8467	1.0300
+447.8733	1.0267
+448.8933	1.0200
+449.9100	1.0167
+450.9633	1.0533
+452.0233	1.0600
+453.0800	1.0567
+454.1133	1.0333
+455.1400	1.0267
+456.1767	1.0367
+457.2000	1.0233
+458.2400	1.0400
+459.2967	1.0567
+460.3367	1.0400
+461.3600	1.0233
+462.3900	1.0300
+463.4167	1.0267
+464.4600	1.0433
+465.4933	1.0333
+466.5167	1.0233
+467.5867	1.0700
+468.6267	1.0400
+469.6767	1.0500
+470.7000	1.0233
+471.7367	1.0367
+472.7867	1.0500
+473.7933	1.0067
+474.7967	1.0033
+475.7967	1.0000
+476.7833	0.9867
+477.7833	1.0000
+478.7900	1.0067
+479.8167	1.0267