test
node1
GO:0002376
immune system process
node2
GO:0002339
B cell selection
node1->node2
node20
GO:0045321
leukocyte activation
node1->node20
node3
GO:0030098
lymphocyte
differentiation
node4
GO:0030183
B cell
differentiation
node3->node4
node4->node2
node5
GO:0009987
cellular process
node6
GO:0001775
cell activation
node5->node6
node10
GO:0048869
cellular
developmental process
node5->node10
node6->node20
node7
GO:0030154
cell differentiation
node8
GO:0002521
leukocyte
differentiation
node7->node8
node14
GO:0048468
cell development
node7->node14
node18
GO:1903131
mononuclear cell
differentiation
node8->node18
node9
GO:0032502
developmental process
node16
GO:0048856
anatomical structure
development
node9->node16
node9->node10
node10->node7
node10->node14
node11
GO:0042113
B cell activation
node11->node4
node12
GO:0046649
lymphocyte activation
node12->node3
node12->node11
node13
GO:0008150
biological_process
node13->node1
node13->node5
node19
GO:0032501
multicellular
organismal process
node13->node19
node13->node9
node21
GO:0030097
hemopoiesis
node14->node21
node15
BFO:0000003
occurrent
node15->node15
node17
BFO:0000015
process
node15->node17
node16->node14
node17->node13
node18->node3
node19->node6
node20->node12
node21->node8
node22
BFO:0000001
entity
node22->node15