| drive(verb, turn, produce, clean, discover) |
| enter(verb, turn, produce, clean, discover) |
| excavate(verb, turn, produce, clean, discover) |
| exhume(verb, turn, produce, clean, discover) |
| fork out(verb, expression, turn, produce, clean) |
| go into(verb, expression, turn, produce, clean) |
| gouge(verb, turn, produce, clean, discover) |
| grub(verb, turn, produce, clean, discover) |
| investigate(verb, turn, produce, clean, discover) |
| mine(verb, turn, produce, clean, discover) |
| penetrate(verb, turn, produce, clean, discover) |
| pierce(verb, turn, produce, clean, discover) |
| pit(verb, turn, produce, clean, discover) |
| probe(verb, turn, produce, clean, discover) |
| produce(noun, verb, turn, clean, split) |
| quarry(verb, turn, produce, clean, discover) |
| root(verb, turn, produce, clean, discover) |
| root out(verb, expression, turn, produce, clean) |
| rout(verb, turn, produce, clean, discover) |
| sap(verb, turn, produce, clean, discover) |