Table 4.

Evaluation of trigger words for the gene expression event.

Trigger word	FP	TP	Occurrence	Hit rate
co-expression	0	2	3	0.7
coexpressed	0	4	6	0.7
nonexpressing	0	2	3	0.7
expressing	1	44	75	0.6
expressed	25	136	232	0.6
express	15	43	81	0.6
production	6	150	298	0.5
co-transfections	1	1	2	0.5
resynthesized	0	1	2	0.5
expression	106	873	1768	0.5
produce	2	16	33	0.5
expresses	0	4	9	0.4
produces	0	2	5	0.4
overexpression	53	27	80	0.4

FP: number of cases where the trigger word is trigger of other event types. TP: number of cases where the trigger word is a gene expression trigger. Occurrences: Total number of occurrences in corpus. Hit rate: see definition in text in Results (Trigger Word Filter).