17
one<>three<>1 0.1389 5 13 5
three<>four<>2 0.1104 1 1 5
one<>four<>3 0.0427 3 13 5
two<>two<>4 0.0410 2 3 7
one<>two<>5 0.0071 5 13 7
two<>four<>6 0.0011 1 3 5