( ( ( A ( multicellular animal ) ) ( ( has ( many cells ) ) ( -LRB- ( ( ( ( Millions , ) trillions ) ( of cells ) ) -RRB- ) ) ) ) ( ( these cells ) ( ( are ( grouped ( to ( form ( tissues ( which ( perform ( ( ( a ( similar function ) ) ( -LRB- ( ( ie ( ( ( all ( the cells ) ) ( in ( a tissue ) ) ) ( perform ( similar function ) ) ) ) -RRB- ) ) ) ( ( The tissues ) ( are ( organized ( to ( form ( organs ( -LRB- ( ( ( ( ( Liver , ) Pancreas ) , ) ( Muscles etc ) ) -RRB- ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) ) )
(ROOT (S (S (NP (DT A) (NN multicellular) (NN animal)) (VP (VBZ has) (NP (JJ many) (NNS cells)) (PRN (-LRB- -LRB-) (NP (NP (NNS Millions)) (, ,) (NP (NNS trillions))) (PP (IN of) (NP (NNS cells))) (-RRB- -RRB-)))) (NP (DT these) (NNS cells)) (VP (VBP are) (VP (VBN grouped) (S (VP (TO to) (VP (VB form) (NP (NP (NNS tissues)) (SBAR (WHNP (WDT which)) (S (VP (VBP perform) (NP (NP (DT a) (JJ similar) (NN function)) (PRN (-LRB- -LRB-) (S (VP (VB ie) (S (NP (NP (PDT all) (DT the) (NNS cells)) (PP (IN in) (NP (DT a) (NN tissue)))) (VP (VB perform) (NP (JJ similar) (NN function)))))) (-RRB- -RRB-)) (SBAR (S (NP (DT The) (NNS tissues)) (VP (VBP are) (VP (VBN organized) (S (VP (TO to) (VP (VB form) (NP (NP (NNS organs)) (PRN (-LRB- -LRB-) (NP (NNP Liver)) (, ,) (NP (NNP Pancreas)) (, ,) (NP (NNP Muscles) (NNP etc)) (-RRB- -RRB-)))))))))))))))))))) (. .)))
A multicellular animal has many cells(Millions, trillions of cells) these cells are grouped to form tissues which perform a similar function (ie all the cells in a tissue perform similar function) The tissues are organized to form organs (Liver, Pancreas, Muscles etc).
(ROOT (S (SBAR (WHADVP (WRB When)) (S (NP (NP (JJ different) (NNS types)) (PP (IN of) (NP (NNS tissues)))) (VP (VBP work) (ADVP (RB together)) (S (VP (TO to) (VP (VB perform) (NP (DT a) (JJ unique) (NN function)))))))) (, ,) (NP (PRP they)) (VP (VBP form) (NP (NN organ))) (. .)))