7. The computer-implemented method of claim 6 wherein each of the rules of the set of rules are applied to the dependency structures in a selected order.
7. The computer-implemented method of claim 6 wherein each of the rules of the set of rules are applied to the dependency structures in a selected order. 10. The computer-implemented method of claim 7 wherein one rule of the set of rules comprises aligning a pair of parent nodes, one from each dependency structure having a tentative correspondence to each other, if each child node of each respective parent node is already aligned to a child of the other parent node.