Table 1.

Variant Concept Rankings in the Development Set

# of drug variants	Target Concept Rank	% of matched total
3,968	1	76.8%
618	2	12.0%
213	3	4.1%
96	4	1.9%
68	5	1.3%
42	6	0.8%
43	7	0.8%
28	8	0.5%
30	9	0.6%
14	10	0.3%
46	>10	0.9%
5,166	All	100.0%