WolframAlpha computational knowledge AI
row reduce {{1,1,1,0,0,0,0,0,0}, {0,0,0,0,0,0,1,1,1}, {1,0,0,1,0,0,1,0,0}, {0,0,1,0,0,1,0,0,1}, {1,1,0,1,1,0,0,0,0}, {0,1,1,0,1,1,0,0,0}, {0,0,0,1,1,0,1,1,0}, {0,0,0,0,1,1,0,1,1}}