code: function filterFunctionWordsAnywhere( wordCombinations, functionWords ) {
  	return wordCombinations.filter( function( combination ) {
  		return isEmpty(
  			intersection( functionWords, combination.getWords() )
  		);
  	} );
  }
docs: Filters word combinations containing certain function words at any position.
  
  @param {WordCombination[]} wordCombinations The word combinations to filter.
  @param {array} functionWords The list of function words.
  @returns {WordCombination[]} Filtered word combinations.