( ( ( ( ( ( Key concepts ) ( include ( types ( of ( ( ( simple machines ) , ) ( how ( ( simple machines ) function ) ) ) ) ) ) ) , ) and ) ( ( examples ( of ( simple machines ) ) ) ( found ( in ( ( ( ( the ( school ( , home ) ) ) , ) & ) ( work environment ) ) ) ) ) ) . )
(ROOT (S (S (NP (NNP Key) (NNS concepts)) (VP (VBP include) (NP (NP (NNS types)) (PP (IN of) (NP (NP (JJ simple) (NNS machines)) (, ,) (SBAR (WHADVP (WRB how)) (S (NP (JJ simple) (NNS machines)) (VP (VBP function))))))))) (, ,) (CC and) (S (NP (NP (NNS examples)) (PP (IN of) (NP (JJ simple) (NNS machines)))) (VP (VBD found) (PP (IN in) (NP (NP (DT the) (NN school) (, ,) (NN home)) (, ,) (CC &) (NP (NN work) (NN environment)))))) (. .)))
Key concepts include types of simple machines, how simple machines function, and examples of simple machines found in the school, home, &amp; work environment.
(ROOT (S (NP (EX There)) (VP (VBP are) (NP (NP (CD six) (NNS types) (NNS types)) (PP (IN of) (NP (JJ simple) (NNS machines))))) (. .)))