chor 1 3
chor 2 5
mu 1 2 3
iv 1 4
mu 4 2 5
mu 3 5 6
mu 6 6 7
mu 7 2 8
iv 2 3
mu 8 1 5
mu 5 3 6
mu 6 3 7
mu 7 4 8
mu 8 2 9
mu 9 2 3
chor 3 1
iv 1 3
iv 2 4
mu 1 2 5
mu 4 4 6
mu 5 1 7
mu 7 6 8
mu 2 2 5
mu 3 5 7
mu 7 3 5
mu 5 6 7
pwr 3 7 4
mu 8 4 3
chor 3 1