parameters: (words)
return_statement: return set(w for w in words if w in WORDS)
docstring: The subset of `words` that appear in the dictionary of WORDS.
docstring_summary: The subset of `words` that appear in the dictionary of WORDS.
docstring_tokens: The subset of words that appear in the dictionary of WORDS .
function: def known(words):
      "The subset of `words` that appear in the dictionary of WORDS."
      return set(w for w in words if w in WORDS)
function_tokens: def known ( words ) : return set ( w for w in words if w in WORDS )