Biomedical Relation Extraction: From Binary to Complex

Table 1

Example of a sentence and its corresponding PPIs.

Sentence	Leukotriene B4 stimulates c-fos and c-jun gene transcription and AP-1 binding activity in human monocytes.
PPIs	Stimulate (leukotriene B4, c-fos)
	Stimulate (leukotriene B4, c-jun)
	Stimulate (leukotriene B4, AP-1)