!7

p-exp {
  for (Pair<S> p : ll(
    pair("I called my mother", "I called my brother"),
    pair("It's time for tea", "What time is it"))) {
    print("\n" + p);
    PTElement tree1 = ai_parseBottomUpToTree(p.a);
    PTElement tree2 = ai_parseBottomUpToTree(p.b);
    
    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));
  }
}