knee, adult, clothing, workman, streetcar, undertaking, joint, unclean, earth, edifice, pitch, project, soiled, skilled worker, difficulty, land, remark, gradient, machine, heavy, knees, shot, outdoor, background, road, hard, artillery, excavation, soil, machinery, industrial, work, job, dig, tool, site, spade, shoveling, workers, weaponry, dirt, equipment, industry, paving, building material, task, cannon, opening, hand tool, difficult, problem, vehicle, employee, black, route, craftsman, someone, degree, concrete, person, wagon, male, hole, people, hat, building, builder, occupation, men, dirty, labor, ground, cement, leveling, working, level, digging, outside, man, trolley, mortar, excavator, rake, sand, cart, hard work, construction worker, construction site, worker, heavy machinery, hardhat, shovel, construction, wearing, vest, orange, duty, chore, armament, dirtiness, state, production, shaft, weapons system, nation, trouble, paved surface, gun, pavement, commonwealth, creator, transaction, grading, first step, high-angle gun, comment, initiative, undershirt, arms, wheeled vehicle, statement, mining, knee joint, synovial joint, commerce, entertainer, performer, actor, singlet, grownup