( ( The ( scleractinian ( hard corals ) ) ) ( ( are ( the ( ( most ( ( common and ) abundant ) ) ( coral ( type ( to ( be ( ( found ( on ( most ( coral reefs ) ) ) ) ( in ( ( ( the ( tropical world ) ) and ) ( ( in ( the coral ) ) ( ( growing areas ) ( of Oman ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (JJ scleractinian) (JJ hard) (NNS corals)) (VP (VBP are) (NP (DT the) (ADJP (RBS most) (JJ common) (CC and) (JJ abundant)) (NN coral) (NN type) (S (VP (TO to) (VP (VB be) (VP (VBN found) (PP (IN on) (NP (JJS most) (NN coral) (NNS reefs))) (PP (IN in) (NP (NP (DT the) (JJ tropical) (NN world)) (CC and) (NP (PP (IN in) (NP (DT the) (NN coral))) (NP (VBG growing) (NNS areas)) (PP (IN of) (NP (NNP Oman)))))))))))) (. .)))
The scleractinian hard corals are the most common and abundant coral type to be found on most coral reefs in the tropical world and in the coral growing areas of Oman.
(ROOT (S (NP (NNS Corals)) (VP (VBP build) (NP (NP (JJ hard) (NNS exoskeletons)) (SBAR (WHNP (WDT that)) (S (VP (VBP grow) (S (VP (TO to) (VP (VB become) (NP (NN coral) (NNS reefs)))))))))) (. .)))