!7

p {
  Set<S> verbs = knownVerbs();
  for (L<S> l : englishIrregularVerbTriples())
    verbs.addAll(concatMap(f splitAtSlash, takeFirst(l, 2)));
  for (L<S> l : english1000VerbQuintuples()) {
    l = ll(l.get(0), l.get(1), l.get(3));
    verbs.addAll(concatMap(f splitAtSlash, l));
  }
  print(lines(verbs));
}