( ( ( The purpose ) ( of ( this activity ) ) ) ( ( is ( to ( ( demonstrate ( ( the necessity ) ( for ( ( ( machines , ) ( both ( ( simple and ) compound ) ) ) , ) ) ) ) ( in ( everyday life ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN purpose)) (PP (IN of) (NP (DT this) (NN activity)))) (VP (VBZ is) (S (VP (TO to) (VP (VB demonstrate) (NP (NP (DT the) (NN necessity)) (PP (IN for) (NP (NP (NNS machines)) (, ,) (NP (DT both) (NN simple) (CC and) (NN compound)) (, ,)))) (PP (IN in) (NP (JJ everyday) (NN life))))))) (. .)))
The purpose of this activity is to demonstrate the necessity for machines, both simple and compound, in everyday life.
(ROOT (S (NP (NNS Scissors)) (VP (VBP are) (NP (JJ compound) (NNS machines))) (. .)))