( ( A photoautotroph ) ( is ( ( an organisms ) ( ( that ( A ( -RRB- uses ) ) ) ( ( ( ( ( ( ( ( CO2 ( as ( a ( carbon source ) ) ) ) and ) ( light ( as ( an ( energy ( source B ) ) ) ) ) ) -RRB- ) ( uses ( CO2 ( as ( ( ( ( ( an ( energy ( ( source and ) light ) ) ) ( as ( a ( carbon source ) ) ) ) C ) -RRB- ) ( uses ( CO2 ( as ( an ( energy source ) ) ) ) ) ) ) ) ) ) and ) ( ( ( organic molecules ) ( as ( a ( carbon ( source D ) ) ) ) ) -RRB- ) ) ( ( uses ( organic molecules ) ) ( as ( a ( carbon ( and ( energy source ) ) ) ) ) ) ) ) ) ) )
(ROOT (S (NP (DT A) (NN photoautotroph)) (VP (VBZ is) (NP (NP (DT an) (NNS organisms)) (SBAR (S (NP (DT that) (NN A) (-RRB- -RRB-) (NNS uses)) (VP (VP (PRN (NP (NP (NP (NNP CO2)) (PP (IN as) (NP (DT a) (NN carbon) (NN source)))) (CC and) (NP (NP (NN light)) (PP (IN as) (NP (DT an) (NN energy) (NN source) (NN B))))) (-RRB- -RRB-)) (VBZ uses) (NP (NP (NNP CO2)) (SBAR (IN as) (S (NP (NP (DT an) (NN energy) (NN source) (CC and) (NN light)) (PP (IN as) (NP (DT a) (NN carbon) (NN source))) (NP (NNP C)) (-RRB- -RRB-)) (VP (VBZ uses) (NP (NP (NNP CO2)) (PP (IN as) (NP (DT an) (NN energy) (NN source))))))))) (CC and) (PRN (NP (NP (JJ organic) (NNS molecules)) (PP (IN as) (NP (DT a) (NN carbon) (NN source) (NNP D)))) (-RRB- -RRB-)) (VP (VBZ uses) (NP (JJ organic) (NNS molecules)) (PP (IN as) (NP (DT a) (NN carbon) (CC and) (NN energy) (NN source)))))))))))
A photoautotroph is an organisms that A) uses CO2 as a carbon source and light as an energy source B) uses CO2 as an energy source and light as a carbon source C) uses CO2 as an energy source and organic molecules as a carbon source D) uses organic molecules as a carbon and energy source
(ROOT (S (NP (NNS Photoautotrophs)) (VP (VP (VB capture) (NP (JJ light) (NN energy))) (, ,) (CC and) (VP (VB use) (NP (NN carbon) (NN dioxide)) (PP (IN as) (NP (PRP$ their) (NN carbon) (NN source))))) (. .)))