*Vertices 3
1 "domestic stoves or ranges for solid fuels; implements for use in..." 0.0 0.0 0.0  x_fact 0.000000 y_fact 0.000000
2 "fluid heaters, e.g. water or air heaters, having heat-generating means,..." 0.0 0.0 0.0  x_fact 0.000000 y_fact 0.000000
3 "electric digital data processing" 0.0 0.0 0.0  x_fact 0.000000 y_fact 0.000000
*Matrix
1.000000 1.000000 0.000000
1.000000 1.000000 0.000000
0.000000 0.000000 1.000000