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