code: def nearest(self, type="VP"):
          
          candidate, d = None, len(self.sentence.chunks)
          if isinstance(self, PNPChunk):
              i = self.sentence.chunks.index(self.chunks[0])
          else:
              i = self.sentence.chunks.index(self)
          for j, chunk in enumerate(self.sentence.chunks):
              if chunk.type.startswith(type) and abs(i-j) < d:
                  candidate, d = chunk, abs(i-j)
          return candidate
docs: Returns the nearest chunk in the sentence with the given type.
              This can be used (for example) to find adverbs and adjectives related to verbs,
              as in: "the cat is ravenous" => is what? => "ravenous".