4:28 Mungu, si ni uongo? Je! haipaswi kuwa x = 1 na y = 2? Y ni sawa lakini x = -1 haionekani kuwa sawa####[['NULL', 'Mathematical_Related_Concept', 'NEU'], ['NULL', 'Mathematical_Related_Concept', 'NEU'], ['NULL', 'Mathematical_Related_Concept', 'NEU'], ['NULL', 'Mathematical_Related_Concept', 'NEU']]