final Treebank goldTreebank = tlpp.diskTreebank();
goldTreebank.loadPath(goldFile);
pwOut.println("GOLD TREEBANK:");
pwOut.println(goldTreebank.textualSummary());
final CollinsDepEval depEval = new CollinsDepEval("CollinsDep", true, tlpp.headFinder(), tlpp.treebankLanguagePack().startSymbol());
final TreeTransformer tc = tlpp.collinizer();
//PennTreeReader skips over null/malformed parses. So when the yields of the gold/guess trees
//don't match, we need to keep looking for the next gold tree that matches.