test
node1
GO:0005488
binding
node2
GO:0050840
extracellular matrix
binding
node1->node2
node3
GO:0005515
protein binding
node1->node3
node4
GO:0044730
bone sialoprotein
binding
node2->node4
node3->node4
node5
BFO:0000003
occurrent
node5->node5
node7
BFO:0000015
process
node5->node7
node6
GO:0003674
molecular_function
node6->node1
node7->node6
node8
BFO:0000001
entity
node8->node5