| artifact → MadeOf → stone | 0.67 | |
| artifact → MadeOf → bone | 0.63 | |
| artifact → MadeOf → wood | 0.56 | |
| artifact → MadeOf → clay | 0.54 | |
| artifact → MadeOf → gold | 0.53 | |
| artifact → MadeOf → ivory | 0.50 | |
| artifact → MadeOf → other materials | 0.49 | |
| artifact → MadeOf → metal | 0.46 | |
| artifact → MadeOf → bronze | 0.45 | |
| artifact → MadeOf → ceramic | 0.43 | |
| artifact → MadeOf → jade | 0.41 | |
| artifact → MadeOf → silver | 0.41 | |
| artifact → MadeOf → soapstone | 0.39 | |
| artifact → MadeOf → brass | 0.39 | |
| artifact → MadeOf → chert | 0.38 | |
| artifact → MadeOf → shell | 0.38 | |
| artifact → MadeOf → iron | 0.37 | |
| artifact → MadeOf → obsidian | 0.35 | |
| artifact → MadeOf → steel | 0.34 | |
| artifact → MadeOf → baked clay | 0.30 | |
| artifact → MadeOf → flint | 0.30 | |
| artifact → MadeOf → leather | 0.30 | |
| artifact → MadeOf → seashell | 0.28 | |
| artifact → MadeOf → softwood | 0.28 | |
| artifact → MadeOf → amber | 0.25 | |
| artifact → MadeOf → antler | 0.25 | |
| artifact → MadeOf → feather | 0.25 | |
| artifact → MadeOf → limestone | 0.25 | |
| artifact → MadeOf → malleabilized cast iron | 0.25 | |
| artifact → MadeOf → quench-hardened steel | 0.25 |