--- a
+++ b/raw_data/kegg/relation2id.txt
@@ -0,0 +1,168 @@
+167
+<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	0
+<http://rdfs.org/ns/void#inDataset>	1
+<http://www.w3.org/2000/01/rdf-schema#seeAlso>	2
+<http://bio2rdf.org/kegg_vocabulary:x-dailymed>	3
+<http://bio2rdf.org/kegg_vocabulary:same-as>	4
+<http://bio2rdf.org/kegg_vocabulary:x-cas>	5
+<http://bio2rdf.org/bio2rdf_vocabulary:x-identifiers.org>	6
+<http://bio2rdf.org/kegg_vocabulary:x-pubchem.compound>	7
+<http://bio2rdf.org/kegg_vocabulary:x-chebi>	8
+<http://bio2rdf.org/kegg_vocabulary:x-chembl>	9
+<http://bio2rdf.org/kegg_vocabulary:x-ccd>	10
+<http://bio2rdf.org/kegg_vocabulary:x-ligandbox>	11
+<http://bio2rdf.org/kegg_vocabulary:x-nikkaji>	12
+<http://bio2rdf.org/kegg_vocabulary:x-atc>	13
+<http://bio2rdf.org/kegg_vocabulary:x-drugbank>	14
+<http://bio2rdf.org/kegg_vocabulary:disease>	15
+[DS:H01580]>	16
+<http://bio2rdf.org/kegg_vocabulary:str_map>	17
+<http://bio2rdf.org/kegg_vocabulary:target>	18
+<http://bio2rdf.org/kegg_vocabulary:link>	19
+<http://bio2rdf.org/kegg_vocabulary:pathway>	20
+[DS:H01635]>	21
+[DS:H01637]>	22
+[DS:H01600]>	23
+<http://bio2rdf.org/kegg_vocabulary:source>	24
+<http://bio2rdf.org/kegg_vocabulary:metabolism>	25
+[DS:H01648]>	26
+[DS:H01656]>	27
+<http://bio2rdf.org/kegg_vocabulary:component>	28
+[DS:H01359]>	29
+[DS:H01862]>	30
+[DS:H01047]>	31
+[DS:H00342]>	32
+[DS:H00332]>	33
+[DS:H00319]>	34
+[DS:H00343]>	35
+[DS:H00360]>	36
+[DS:H00354]>	37
+[DS:H00297]>	38
+[DS:H00363]>	39
+[DS:H00612]>	40
+simple>	41
+[DS:H00366]>	42
+[DS:H01646]>	43
+[DS:H00315]>	44
+[DS:H01633]>	45
+[DS:H00079]>	46
+myelogenous>	47
+[DS:H01667]>	48
+lymphatic>	49
+[DS:H01424]>	50
+[DS:H00299]>	51
+lymphoblastic>	52
+[DS:H00043]>	53
+[DS:H01513]>	54
+[DS:H01639]>	55
+[DS:H00350]>	56
+[DS:H00349]>	57
+[DS:H00305]>	58
+[DS:H00312]>	59
+[DS:H00110]>	60
+[DS:H00325]>	61
+[DS:H00326]>	62
+[DS:H01318]>	63
+[DS:H00328]>	64
+[DS:H01325]>	65
+[DS:H01609]>	66
+[DS:H00364]>	67
+[DS:H00038]>	68
+[DS:H01501]>	69
+[DS:H01062]>	70
+[DS:H01328]>	71
+[DS:H01649]>	72
+[DS:H01645]>	73
+[DS:H00812]>	74
+[DS:H01602]>	75
+[DS:H00435]>	76
+[DS:H00361]>	77
+[DS:H01605]>	78
+[DS:H00228]>	79
+[DS:H00439]>	80
+[DS:H00345]>	81
+[DS:H00344]>	82
+[DS:H01632]>	83
+[DS:H01714]>	84
+[DS:H01604]>	85
+[DS:H00896]>	86
+[DS:H01388]>	87
+[DS:H01483]>	88
+[DS:H00337]>	89
+[DS:H01043]>	90
+[DS:H00398]>	91
+[DS:H01593]>	92
+[DS:H00978]>	93
+gravis>	94
+[DS:H00250]>	95
+[DS:H00334]>	96
+[DS:H00339]>	97
+[DS:H00028]>	98
+[DS:H01210]>	99
+[DS:H00219]>	100
+[DS:H01636]>	101
+[DS:H01532]>	102
+[DS:H00036]>	103
+[DS:H01293]>	104
+[DS:H01519]>	105
+[DS:H00362]>	106
+[DS:H00901]>	107
+syndrome>	108
+[DS:H01566]>	109
+[DS:H01531]>	110
+[DS:H01530]>	111
+[DS:H00111]>	112
+[DS:H01316]>	113
+[DS:H00235]>	114
+[DS:H01517]>	115
+[DS:H01315]>	116
+[DS:H00359]>	117
+[DS:H01644]>	118
+cancer>	119
+[DS:H00042]>	120
+lymphoma>	121
+[DS:H01510]>	122
+C11388>	123
+[DS:H00275]>	124
+syndromes>	125
+[DS:H01475]>	126
+disease>	127
+[DS:H00789]>	128
+[DS:H02176]>	129
+[DS:H0049]>	130
+D05855>	131
+D01222>	132
+thyroiditis>	133
+[DS:H00015]>	134
+[DS:H00377]>	135
+infection>	136
+C09847>	137
+C11392>	138
+C09666>	139
+C11393>	140
+C00809>	141
+C11476>	142
+C01684>	143
+C08945>	144
+C00402>	145
+C08976>	146
+C11338>	147
+C10906>	148
+C06427>	149
+C00031>	150
+C12900>	151
+[DS:H01048]>	152
+[DS:H00183]>	153
+C11389>	154
+ascites>	155
+fungoides>	156
+fibrosis>	157
+[DS:H01398]>	158
+[DS:H01662]>	159
+[DS:H02301]>	160
+[DS:H00213]>	161
+tumors>	162
+carcinoma>	163
+dystrophy>	164
+[DS:H00167]>	165
+[DS:H00372]>	166