code: def text_to_title(value):
      
      title = None
      if not value:
          return title
      words = value.split(" ")
      keep_words = []
      for word in words:
          if word.endswith(".") or word.endswith(":"):
              keep_words.append(word)
              if len(word) > 1 and "<italic>" not in word and "<i>" not in word:
                  break
          else:
              keep_words.append(word)
      if len(keep_words) > 0:
          title = " ".join(keep_words)
          if title.split(" ")[-1] != "spp.":
              title = title.rstrip(" .:")
      return title
docs: when a title is required, generate one from the value