test
node1
GO:0098661
inorganic anion
transmembrane
transport
node2
GO:0015706
nitrate transmembrane
transport
node1->node2
node3
BFO:0000003
occurrent
node3->node3
node4
BFO:0000015
process
node3->node4
node6
GO:0008150
biological_process
node4->node6
node5
GO:1902025
nitrate import
node5->node2
node7
GO:0051179
localization
node6->node7
node10
GO:0009987
cellular process
node6->node10
node12
GO:0051234
establishment of
localization
node7->node12
node8
BFO:0000001
entity
node8->node3
node9
GO:0015698
inorganic anion
transport
node9->node1
node9->node5
node11
GO:0055085
transmembrane
transport
node10->node11
node15
GO:0098660
inorganic ion
transmembrane
transport
node11->node15
node13
GO:0006810
transport
node12->node13
node13->node9
node13->node11
node14
GO:0071705
nitrogen compound
transport
node13->node14
node14->node5
node15->node1