12. The method of claim 11 wherein generating the score comprises: applying, to the semantic representation corresponding the root node and to a syntactic representation corresponding the root node, a scoring neural network that is trained to receive a semantic vector and a syntactic vector and generate the score indicating how reliably the semantic vector maps into the language independent space.
12. The method of claim 11 wherein generating the score comprises: applying, to the semantic representation corresponding the root node and to a syntactic representation corresponding the root node, a scoring neural network that is trained to receive a semantic vector and a syntactic vector and generate the score indicating how reliably the semantic vector maps into the language independent space. 13. The method of claim 12 wherein generating the score further comprises: applying the scoring neural network to multiple nodes of the dependency structure to compute corresponding scores for the multiple nodes of the dependency structure; and combining, as the score for the composition, the scores for the multiple nodes of the dependency structure.