species_25 -> species_10
species_10 -> species_25
species_10 + species_11 -> species_12 + species_14
species_12 + species_14 -> species_10 + species_11
species_14 -> species_15
species_15 -> species_14
species_11 + species_15 -> species_12 + species_16
species_12 + species_16 -> species_11 + species_15
species_16 -> species_17 + species_18
species_17 + species_18 -> species_16
species_17 -> species_18
species_18 -> species_17
species_18 + species_19 -> species_20 + species_21
species_20 + species_21 -> species_18 + species_19
species_17 + species_20 -> species_19 + species_22
species_19 + species_22 -> species_17 + species_20
species_9 -> species_8
species_1 -> species_26
species_12 + species_21 -> species_11 + species_23
species_11 + species_23 -> species_12 + species_21
species_2 + species_4 -> species_1 + species_3
species_1 + species_3 -> species_2 + species_4
species_3 -> species_2
species_12 + species_22 -> species_11 + species_24
species_11 + species_24 -> species_12 + species_22
species_7 -> species_5
species_5 -> species_7
species_5 -> species_4
species_4 -> species_5
species_3 + species_6 -> 2*species_2
2*species_2 -> species_3 + species_6
species_11 + species_13 -> 2*species_12
2*species_12 -> species_11 + species_13
species_23 -> species_7
species_7 -> species_23
species_22 + species_8 -> species_17 + species_9
species_17 + species_9 -> species_22 + species_8
species_24 -> species_27
species_27 -> species_24