| drive(verb, turn, produce, clean, discover) |
| gouge(verb, take, clear, remove, turn) |
| investigate(verb, check, turn, produce, clean) |
| mine(verb, turn, produce, clean, discover) |
| quarry(verb, turn, produce, clean, discover) |
| root out(verb, expression, phrasal verb, turn, produce) |
| sap(verb, turn, produce, clean, discover) |
| scoop out(verb, expression, turn, produce, clean) |
| scrutinize(verb, clear, check, examine, gather) |
| sift(verb, check, turn, produce, clean) |
| tunnel(verb, turn, produce, clean, discover) |
| break up(verb, expression, clear, turn, produce) |
| bulldoze(verb, turn, produce, clean, discover) |
| cat(verb, turn, produce, clean, discover) |
| channel(verb, turn, produce, clean, discover) |
| concave(verb, turn, produce, clean, discover) |
| deepen(verb, turn, produce, clean, discover) |
| depress(verb, turn, produce, clean, discover) |
| dig down(verb, expression, turn, produce, clean) |
| discover(verb, turn, produce, clean, find) |