participates_in participates in has role harvest process plant harvest implement scythe Agricultural tool that consists of a shaft about 170 centimetres (67 in) long made of wood or metal. The shaft has either one or two short handles at right angles to it, usually one near the upper end and always another roughly in the middle. A curved, steel blade between 60 to 90 centimetres (24 to 35 in) long is mounted at the lower end at 90°, or less, to the shaft. It is hand powered. https://orcid.org/0000-0001-6284-4821 forage harvester reapper digger human power role Homo sapiens