Table 4.

Distribution of positive and negative sentences in the BEL_Sentence_Classification corpus

Class	True	False	Total
Fully Supportive	578	976	1554
Partially Supportive	804	750	1554

A relationship is annotated as fully supportive if the BEL statement is fully expressed in the text excerpts. It contains all information to allow the extraction of the corresponding statements

The category partially supportive is always valid if the fully supportive value is true. In addition, a relationship is annotated as partially supportive if the statement can only be extracted by taking biological background knowledge or contextual details into account.