!7

sS input_train = [[
  Suppose we have a list. The list has 5 elements. How many elements does the list have? 5
]];

sS input_test = [[
  Suppose we have a list. The list has 3 elements. How many elements does the list have?
]];

p {
  L<S> tok_train = parse(input_train);
  L<S> tok_test = parse(input_test);
  printStruct(simpleComplete(tok_train, tok_test));
}

static L<S> simpleComplete(L<S> tok_train, L<S> tok_test) {
  assertTrue("Bad length", l(tok_train) >= l(tok_test));
  new SS map;
  for (int i = 1; i < l(tok_test); i += 2)
    map.put(tok_train.get(i), tok_test.get(i));
  new L<S> out;
  for (int i = l(tok_test); i < l(tok_train); i += 2) {
    S t = tok_train.get(i);
    out.add(getOrKeep(map, t));
  }
  ret out;
}

static L<S> parse(S s) { ret simpleSpaces(javaTok(s)); }