· Zhang Hua, Zhang Guang, and Zhang Liang are classmates, and their sisters Zhang Mei, Zhang Li, and Zhang Qiao are also attending the same school. Zhang Mei said: "My brother and Zhang Guang are both members of the school basketball team, and "Three of them are the shortest. " Zhang Li said, "Zhang Liang is taller than Zhang Qiao's brother. ". If all the above situations are true, three pairs of siblings can be introduced:. ['Zhang Hua and Zhang Mei, Zhang Guang and Zhang Li, Zhang Liang and Zhang Qiao.', 'Zhang Hua and Zhang Qiao, Zhang Guang and Zhang Mei, Zhang Liang and Zhang Li.', 'Zhang Hua and Zhang Li, Zhang Guang and Zhang Qiao, Zhang Liang and Zhang Mei.', 'Zhang Hua and Zhang Mei, Zhang Guang and Zhang Qiao, Zhang Liang and Zhang Li.']