2.19 Demonstrate how simple machines help people move and work A. Identify the uses of simple machines.
(simple machines; help; people move and work A. Identify the uses of simple machines) Context(simple machines help,List([21, 41))):(people; move; ) (people; work; A. Identify the uses of simple machines) Context(people work,List([42, 62))):(A.; Identify; the uses of simple machines)
simple machines help,List([21, 41)) people work,List([42, 62))
simple machines people people A.
help move work Identify
people move and work A. Identify the uses of simple machines
A. Identify the uses of simple machines
the uses of simple machines