From: BioRel: towards large-scale biomedical relation extraction
Lexical | The sequence of words between the two entities |
The part-of-speech of words between the two entities | |
A flag indicating which entity came first in the sentence | |
A window of k words to the left of the first entity and their part-of-speech tags | |
A window of k words to the right of the second entity and their part-of-speech tags | |
Syntactic | A dependency path between the two entities |
Part-of-speech of words in dependency path | |
A ‘window’ node that is not part of the dependency path |