17
two<>two<>1 3.6000 2 3 7
three<>four<>2 3.0000 1 1 5
one<>three<>3 2.5000 5 13 5
two<>four<>4 1.2500 1 3 5
one<>two<>5 0.6250 5 13 7
one<>four<>6 0.3000 3 13 5