17
three<>four<>1 2.5500 1 1 5
one<>three<>2 2.1795 5 13 5
one<>four<>3 1.0679 3 13 5
two<>two<>4 0.9772 2 3 7
one<>two<>5 0.1681 5 13 7
two<>four<>6 0.0270 1 3 5