Complex sentence: Graham married Thin Zar Oo, whom he met during his College years, in 1993 and she gave birth to their first daughter Pan Yaung Chel in 1996 and their second daughter, Pan Thun Chel, in 2001.
Split into simpler sentences: Graham married Thinza Oo, whom he met during his college years, in 1993. She gave birth to their first daughter Pan Yaung Che in 1996 and their second daughter Pan Thun Che in 2001.