test
node1
BFO:0000003
occurrent
node1->node1
node2
BFO:0000015
process
node1->node2
node7
GO:0003674
molecular_function
node2->node7
node3
GO:0060089
molecular transducer
activity
node4
GO:0038023
signaling receptor
activity
node3->node4
node5
GO:0070053
thrombospondin
receptor activity
node4->node5
node6
BFO:0000001
entity
node6->node1
node7->node3