TABLE 2.

Statistics of heterogeneous pharmaceutical KG edges for each relation type.

Relation type	All	Train	Valid	Test
Category	60,459	54,419	3,020	3,020
ATC	16,341	14,711	815	815
Pathway	18,707	16,847	930	920
Interact	2,682,142	2,413,932	134,105	134,105
Target	18,467	16,627	920	920
Enzyme	5,206	4,686	260	260
Carrier	815	735	40	40
Transporter	3,093	2,793	150	150
Total	2,750,228	2,525,829	140,240	140,240