32. The system of claim 31 wherein each selected parent node has a corresponding head child node and wherein the intra-constituent ordering component is configured to generate order hypotheses that hypothesize an order of the child nodes relative to one another and score each order hypothesis.
33. The system of claim 32 wherein the intra-constituent ordering component is configured to generate each of the order hypotheses by, in a first processing stage, generating an order hypothesis for each one of the child nodes ordered as a modifier of the head child node.