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Using the point B and the point G, construct a point Mb (rule W01);
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Using the point B and the point Tb, construct a line sb (rule W02);
% DET: points B and Tb are not the same
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Using the point Tb and the point Mb, construct a line b (rule W02);
% DET: points Tb and Mb are not the same
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Using the point Mb and the line b, construct a line mb (rule W10b);
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Using the line mb and the line sb, construct a point Nb (rule W03);
% NDG: lines mb and sb are not parallel
% DET: lines mb and sb are not the same
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Using the point B and the point Nb, construct a line m(BNb) (rule W14);
% DET: points B and Nb are not the same
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Using the line m(BNb) and the line mb, construct a point O (rule W03);
% NDG: lines m(BNb) and mb are not parallel
% DET: lines m(BNb) and mb are not the same
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Using the point B and the point O, construct a circle k(O,C) (rule W06);
% NDG: points B and O are not the same
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Using the circle k(O,C) and the line b, construct a point C and a point A (rule W04);
% NDG: line b and circle k(O,C) intersect