If the students without the ball get tagged (no throwing the ball) by a red, "germ" ball, then they are to get on their back and flail their arms and legs in the air.
(the students without the ball; get; tagged) (they; to flail; their arms and legs; L:in the air) (the students without the ball; tagged; ) (no; throwing; the ball; by a red, "germ" ball) (they; are; to get on their back and flail their arms and legs in the air; T:then) (they; to get; on their back)
the students without the ball they the students without the ball no they they
get to flail tagged throwing are to get
tagged
their arms and legs L:in the air
the ball by a red, "germ" ball
to get on their back and flail their arms and legs in the air T:then
on their back