pair,contact1,contact2,flow1,flow2
2wwb_G_,1917,1930,1,1
2wwb_G_,1918,1929,1,1
2wwb_G_,1919,1928,1,1
2wwb_G_,1920,1928,1,1
2wwb_G_,1921,1927,1,1
2wwb_G_,1922,1925,1,1