test
node1
BFO:0000015
process
node2
GO:0003674
molecular_function
node1->node2
node6
GO:0005488
binding
node2->node6
node3
GO:0005515
protein binding
node4
GO:0098769
TIMP family protein
binding
node3->node4
node5
BFO:0000003
occurrent
node5->node1
node5->node5
node6->node3
node7
BFO:0000001
entity
node7->node5