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# 初始化数据库
def init(data):
	data['first'] = {}
	data['middle'] = {}
	data['last'] = {}
# 查询数据库中标签和名（First，Middle， Last）
def lookup(data,label,name):
	return data[label].get(name)
def store(data, *full_names):
	for full_name in full_names:
		names = full_name.split()
		if len(names) == 2:
			names.insert(1,'')
		labels = 'first', 'middle', 'last'
        # 联合标签和名字
		for label,name in zip(labels,names):
            # 调用lookup函数并将结果赋予people
			people = lookup(data,label,name)
			# 如果查询的结果非空，将对应的全名加入相应的label，name对应的全名集中
            if people:
				people.append(full_name)
			# 若查询为空，将相应的labels和names以及对应的全名加入数据集中
            else:
				data[label][name] = [full_name]
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