!7

p-exp {
  PTElement tree1 = ai_parseBottomUpToTree("I called my mother");
  PTElement tree2 = ai_parseBottomUpToTree("I called my brother");
  
  L<Pair<PTElement>> matches = ai_matchParseTrees(tree1, tree2);
  pnl(flattenListOfPairs(matches));
  
  // Quick&Dirty matching using PTElement.toString()
  matches = dropPairsWithSameToStringOnBothSidesIC(matches);
  
  print("\nSimplified.");
  pnl(flattenListOfPairs(matches));
}