code: def fts_match_any(self, fts, inv):
          
          return any([self.fts_match(fts, s) for s in inv])
docs: Return `True` if any segment in `inv` matches the features in `fts`
  
          Args:
              fts (list): a collection of (value, feature) tuples
              inv (list): a collection of IPA segments represented as Unicode
                          strings
  
          Returns:
              bool: `True` if any segment in `inv` matches the features in `fts`