( ( ( ( ( 0 CD-ROM ) , ) ( ( CASREACT , ) ( CrossFire ( Reaction ( Databases Reaction ) ) ) ) ) ( databases ( ( contain information ) ( on ( chemical reactions. ) ) ) ) ) ( , ( ( This information ) ( ( may ( include ( ( ( ( ( ( ( ( ( reactants , ) catalysts ) , ) products ) , ) and ) yields ) ( as ( well as ) ) ) ( other ( reactant conditions ) ) ) ) ) . ) ) ) )
(ROOT (S (S (NP (NP (CD 0) (NN CD-ROM)) (, ,) (NP (NP (NNP CASREACT)) (, ,) (NP (NNP CrossFire) (NNP Reaction) (NNPS Databases) (NNP Reaction)))) (VP (VBZ databases) (VP (VB contain) (NP (NN information)) (PP (IN on) (NP (NN chemical) (NN reactions.)))))) (, ,) (NP (DT This) (NN information)) (VP (MD may) (VP (VB include) (NP (NP (NP (NNS reactants)) (, ,) (NP (NNS catalysts)) (, ,) (NP (NNS products)) (, ,) (CC and) (NP (NNS yields))) (CONJP (RB as) (RB well) (IN as)) (NP (JJ other) (NN reactant) (NNS conditions))))) (. .)))
0 CD-ROM, CASREACT, CrossFire Reaction Databases Reaction databases contain information on chemical reactions., This information may include reactants, catalysts, products, and yields as well as other reactant conditions.
(ROOT (S (NP (NP (DT The) (NN amount)) (PP (IN of) (NP (NP (NN product)) (SBAR (WHNP (WDT that)) (S (VP (MD may) (VP (VB be) (VP (VBN produced) (PP (IN by) (NP (DT a) (NN reaction))) (PP (IN under) (NP (VBN specified) (NNS conditions))))))))))) (VP (VBZ is) (VP (VBN called) (NP (JJ theoretical) (NN yield)))) (. .)))
The amount of product that may be produced by a reaction under specified conditions is called theoretical yield.