To this end, we will also encode syntactic parse trees of a premise and hypothesis through tree-LSTM Tai et al., 2015;Le and Zuidema, 2015), which extends the chain LSTM to a recursive network (Socher et al., 2011).
given the parse of a premise or hypothesis, a tree node is deployed with a tree-LSTM memory block depicted as in Figure 2 and computed with Equations (3-10).