| http://www.w3.org/ns/prov#value | - ols involved in the construction or repair of houses, buildings, or other structures such as highways and roads. 4 Geography -- Knowledge of principles and methods for describing the features of land, sea, and air masses, including their physical characteristics, locations, interrelationships, and distribution of plant, animal, and human life. 3 Food Production -- Knowledge of techniques and equip
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