An updraft or downdraft is the vertical movement of air as weather causes two forces to move.
(An updraft or downdraft; is; the vertical movement of air; T:as weather causes two forces to move) (weather; causes; two forces to move) Context(weather causes,List([59, 73))):(two forces; to move; )
weather causes,List([59, 73))
An updraft or downdraft weather two forces
is causes to move
the vertical movement of air T:as weather causes two forces to move
two forces to move