question: what are needed for precipitation?
choices.text: deposits clouds fluid trees tornadoes liquids lamphreys oxidizers
choices.label: A B C D E F G H
fact2: Moisture is a necessary ingredient for the production of clouds and precipitation.
combinedfact: clouds are necessary for precipitation
formatted_question: what are needed for precipitation? (A) deposits (B) clouds (C) fluid (D) trees (E) tornadoes (F) liquids (G) lamphreys (H) oxidizers