( ( Other surfaces ) ( ( should ( be ( able ( to ( ( ( withstand ( the elements ) ) and ) ( be ( easily maintained ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Other) (NNS surfaces)) (VP (MD should) (VP (VB be) (ADJP (JJ able) (S (VP (TO to) (VP (VP (VB withstand) (NP (DT the) (NNS elements))) (CC and) (VP (VB be) (VP (ADVP (RB easily)) (VBN maintained))))))))) (. .)))
Other surfaces should be able to withstand the elements and be easily maintained.
(ROOT (S (NP (JJ Reactive) (NNS elements)) (VP (VBP are) (ADJP (JJ able) (S (VP (TO to) (VP (VB combine) (ADVP (RBR more) (RB easily)) (PP (IN with) (NP (JJ other) (NNS elements)))))))) (. .)))