| septic tank → HasA → baffle | 0.49 | |
| septic tank → HasA → outlet | 0.47 | |
| septic tank → HasA → two chambers | 0.47 | |
| septic tank → HasA → tee | 0.43 | |
| septic tank → HasA → filter | 0.34 | |
| septic tank → HasA → bacteria | 0.31 | |
| septic tank → HasA → partial concrete dividing wall | 0.28 | |
| septic tank → HasA → leak | 0.26 | |
| septic tank → HasA → moving parts | 0.25 | |
| septic tank → HasA → riser | 0.25 | |
| septic tank → HasA → crack | 0.20 |