def METHOD_NAME(self) -> Tuple[List[str], List[str]]:
    """
    Apply acceptability checking params specific to BST-style conversation.
    The BST mode starts the conversation with two previous utterances, so there
    should be no new greeting. Also, the first human response is one of the previous
    utterances, so it shouldn't get checked.
    """
    human_messages = [
        message['text'] for message in self.dialog if message['id'] == 'YOU'
    ]
    violation_types = ['min_words', 'all_caps', 'exact_match']
    if self.opt['conversation_start_mode'] == 'blended_skill_talk':
        violation_types.append('penalize_greetings')
        # human_messages = human_messages[1:]
    return human_messages, violation_types