2*species_2 -> species_43
0 -> species_3
species_3 -> 0
0 -> species_4
0 -> species_6
species_6 -> 0
species_4 -> 0
species_8 -> 0
0 -> species_8
0 -> species_10
species_10 -> 0
0 -> species_7
species_7 -> 0
species_3 + species_8 -> species_9
species_9 -> species_3 + species_8
species_3 + species_43 -> species_12
species_12 -> species_3 + species_43
species_10 + 2*species_8 -> species_18
species_18 -> species_10 + 2*species_8
species_10 + species_43 -> species_15
species_15 -> species_10 + species_43
species_12 + species_43 -> species_16
species_16 -> species_12 + species_43
species_8 + species_9 -> species_17
species_17 -> species_8 + species_9
species_15 + species_43 -> species_19
species_19 -> species_15 + species_43
species_16 -> 4*species_2 + species_3
species_19 -> species_10 + 4*species_2
species_2 -> 0
species_2 + species_25 -> species_24
species_24 -> species_2 + species_25
species_24 -> species_25 + species_26
species_26 -> species_2
0 -> species_25
species_25 -> 0
species_26 -> species_2
species_17 -> 0
species_18 -> 0
species_11 -> species_5
species_5 -> species_11
0 -> species_1
species_1 -> 0
species_5 -> species_2