chor 1 2
chor 2 5
mu 1 2 3
chor 3 11
com 1 2 4
chor 4 3
mu 2 2 5
com 1 5 6
chor 6 3
mu 2 3 7
com 1 7 8
chor 8 3
mu 7 2 9
com 1 9 10
chor 10 3