かれら は 同おなじ 大だい学がく に 行いく と 思おもう。karera ha onazi daigaku ni iku to omou.(I) think they go to the same university.Breakdown of karera ha onazi daigaku ni iku to omou.はhatopic particleにniat; on; in; to; for [indirect object particle]とtoand; or; with行いくikuto go