You can also go to the other sides:
1) benzatina penicilina g
1. -- > entidad
2. ---- > objeto_físico
3. ------ > inanimado
4. -------- > material
5. ---------- > sustancia
6. ------------ > sal
7. -------------- > sal insoluble
8. ---------------- > benzatina
9. ------------------ > benzatina penicilina g