Suluhu zisizo za maana hazipo kwa nxn matrix ikiwa safu wima ni huru kwa mstari####[['nxn matrix', 'Mathematical_Related_Concept', 'NEU'], ['safu wima', 'Mathematical_Related_Concept', 'NEU'], ['huru kwa mstari', 'Mathematical_Related_Concept', 'NEU']]