test
node1
GO:0007154
cell communication
node2
GO:0009875
pollen-pistil
interaction
node1->node2
node4
GO:0009876
pollen adhesion
node2->node4
node3
GO:0098609
cell-cell adhesion
node3->node4
node5
GO:0022414
reproductive process
node5->node2
node5->node4
node15
GO:0009856
pollination
node5->node15
node6
BFO:0000003
occurrent
node6->node6
node12
BFO:0000015
process
node6->node12
node7
BFO:0000001
entity
node7->node6
node8
GO:0008150
biological_process
node8->node5
node9
GO:0009987
cellular process
node8->node9
node10
GO:0000003
reproduction
node8->node10
node13
GO:0032501
multicellular
organismal process
node8->node13
node9->node1
node11
GO:0007155
cell adhesion
node9->node11
node10->node5
node11->node3
node12->node8
node14
GO:0044706
multi-multicellular
organism process
node13->node14
node14->node15
node15->node2