<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def serialize(self):
 """Returns serialized chunk data in dictionary."""

    return {
        'word': self.word,
        'pos': self.pos,
        'label': self.label,
        'dependency': self.dependency,
        'has_cjk': self.has_cjk(),
    }