def find(self, prefix, forbidden):
    ret = []
    _text = self.text
    _text = _text.replace(forbidden, ' ')
    _text = _text.replace('\u3000', '')
    _text = _text.replace('！', '')
    if (not _text.startswith('RT')):
        for word in _text.split(' '):
            word = self.remove_emojis(word)
            if ((len(word) >= 2) and (word.count(prefix) == 1)):
                word = word.split(prefix)
                word = (prefix + word[(len(word) - 1)])
                word = word.strip()
                if ((word not in ret) and (len(word) >= 2) and word.startswith(prefix)):
                    ret.append(word.lower())
    return ret
def find(self, prefix, forbidden):
    ret = []
    _text = self.text
    _text = _text.replace(forbidden, ' ')
    _text = _text.replace('\u3000', )
    _text = _text.replace('！', )
    if (not _text.startswith('RT')):
        for word in _text.split(' '):
            word = self.remove_emojis(word)
            if ((len(word) >= 2) and (word.count(prefix) == 1)):
                word = word.split(prefix)
                word = (prefix + word[(len(word) - 1)])
                word = word.strip()
                if ((word not in ret) and (len(word) >= 2) and word.startswith(prefix)):
                    ret.append(word.lower())
    return ret