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