test1.txt

['A', 'B', 1, 0, 0, 0, 1]
['B', 'C', 2, 1, 0, 0, 1]
['C', 'D', 3, 1, 1, 0, 1]
['A', 'D', 4, 0, 1, 0, 1]
['E', 'F', 5, 0, 0, 1, 2]
['F', 'G', 6, 1, 0, 1, 2]
['G', 'H', 7, 1, 1, 1, 2]
['H', 'I', 8, 0, 1, 1, 2]
['I', 'J', 9, 0, 0, 2, 3]
['J', 'K', 10, 1, 0, 2, 3]