drilling, drill, quarry, machine, exploration, driller, rock, mine, mining, big, blasting, heavy, excavator, boring, industry, tool, borer, geology, stone, technology, work, power, construction, industrial, metallic, quarrying, digging, machinery, open, pit, yellow, equipment, performer, expedition, excavation, profession, engineering, victim, discipline, fabric, travel, actor, application, outside, production, prey, employee, earth science, practice, worker, journey, hole, building, commerce, training, transaction, target, science, workman, large, person, exercise, bore bit, outdoors, entertainer