a b b a a b x1 a a b b a b a x1 2.2 a b b a a b x1 a b b a b a x1 a b b a a b x1 a b a x1 a b b a a b x1 a a b b a b a x1 a b b a a b x1 a x1 true a b b a a b x1 a x1 a b b a a b x1 a a b b a b a x1 a b b a a b x1 a b a x1 a b b a a b x1 a b b a b a x1 true a 1 1 0 b 1 1 28958 a 1 1 0 a b b a a b x1 a b b a b a x1 a b b a a b x1 a a b b a b a x1 a b b a a b x1 a a b b a b a x1 a b b a a b x1 a b b a b a x1 a b b a a b x1 a a b b a b a x1 true a 1 0 b 1 1 8856 a 1 1 0 a b b a a b x1 a b b a b a x1 a b b a a b x1 a a b b a b a x1 a b b a a b x1 a b b a b a x1 true 2 1 a 1 1 0 0 0 1 1 0 b 1 0 1 1 1 1 1 9982 a 1 0 1 1 1 1 0 0 a b b a a b x1 a a b b a b a x1 NaTT certifiable-1.6