( ( Coastal armoring ) ( ( includes ( ( ( ( ( ( ( ( ( ( ( ( ( ( sea walls ) , ) ( rock revetments ) ) , ) riprap ) , ) ( sandbag installations ) ) , ) groins ) , ) jetties ) , ) and ) bulkheads ) ) . ) )
(ROOT (S (NP (NNP Coastal) (NN armoring)) (VP (VBZ includes) (NP (NP (NN sea) (NNS walls)) (, ,) (NP (NN rock) (NNS revetments)) (, ,) (NP (NN riprap)) (, ,) (NP (JJ sandbag) (NNS installations)) (, ,) (NP (NNS groins)) (, ,) (NP (NNS jetties)) (, ,) (CC and) (NP (NNS bulkheads)))) (. .)))
Coastal armoring includes sea walls, rock revetments, riprap, sandbag installations, groins, jetties, and bulkheads.
(ROOT (S (NP (NP (DT A) (NN wall)) (PP (IN of) (NP (NP (NNS rocks)) (CC or) (NP (JJ concrete) (DT a))))) (VP (VBD called) (NP (DT a) (NN groin))) (. .)))