| crude oil → HasA → asphalt | 0.38 | |
| crude oil → HasA → water | 0.37 | |
| crude oil → HasA → impurity | 0.37 | |
| crude oil → HasA → paraffin | 0.36 | |
| crude oil → HasA → much carbon | 0.35 | |
| crude oil → HasA → different characteristics | 0.33 | |
| crude oil → HasA → less impurity | 0.33 | |
| crude oil → HasA → low acid value | 0.33 | |
| crude oil → HasA → lustre | 0.33 | |
| crude oil → HasA → mixed base | 0.31 | |
| crude oil → HasA → unique molecular characteristics | 0.31 | |
| crude oil → HasA → nitrogen | 0.30 | |
| crude oil → HasA → lead | 0.28 | |
| crude oil → HasA → zinc | 0.28 | |
| crude oil → HasA → aluminum | 0.25 | |
| crude oil → HasA → copper | 0.25 | |
| crude oil → HasA → iron | 0.25 | |
| crude oil → HasA → oxygen | 0.25 | |
| crude oil → HasA → sulphur | 0.25 | |
| crude oil → HasA → high sulfur content | 0.23 | |
| crude oil → HasA → benzene | 0.16 | |
| crude oil → HasA → salt | 0.16 |