a body at rest tends to stay at rest UNTIL acted on by an outside force.
(a body at rest; tends; to stay at rest UNTIL acted on by an outside force) (a body at rest; to stay; at rest; T:UNTIL acted on by an outside force) (UNTIL; acted; on)
a body at rest a body at rest UNTIL
tends to stay acted
to stay at rest UNTIL acted on by an outside force
at rest T:UNTIL acted on by an outside force
on