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Table 2 Missing relationship error distribution by level in the top area of NCIt’s BP hierarchy

From: Missing lateral relationships in top-level concepts of an ontology

Level # concepts # concepts missing relationships % of concepts missing relationships
0 1 0 0
1 7 0 0
2 69 15 21.7
3 138 53 38.4
4 125 58 46.4
5 88 61 69.3
6 44 32 72.7
7 14 8 57.1
8 23 5 21.7
9 4 0 0
Total 513 232 45.2