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Table 3 Main grammatical relations and some of their values generated from parse tree in Figure 2.

From: Extracting causal relations on HIV drug resistance from literature

Component Explanation and example
nsubj Nominal subject: MUTATION0
nsubjpass Nominal passive subject
pre Predicate of a clause: increased resistance to DRUG0, but not DRUG1
dobj Direct object: resistance
iobj Indirect object
pobj Prepositional object: DRUG0, but not DRUG1
prep Prepositional modifier: to DRUG0, but not DRUG1
cc Coordination: but not
conj Conjunction: DRUG1
neg Negation: not
acomp Adjectival complement