( ( If ( ( no Carbon ) ( is present ) ) ) ( , ( ( ( put ( all elements ) ) ( in ( alphabetical order ) ) ) . ) ) )
(ROOT (S (SBAR (IN If) (S (NP (DT no) (NNP Carbon)) (VP (VBZ is) (ADJP (JJ present))))) (, ,) (VP (VB put) (NP (DT all) (NNS elements)) (PP (IN in) (NP (JJ alphabetical) (NN order)))) (. .)))
If no Carbon is present, put all elements in alphabetical order.
(ROOT (S (NP (DT The) (NN element) (NN carbon)) (VP (VBZ is) (ADJP (JJ present) (PP (IN in) (NP (DT all) (JJ organic) (NNS molecules))))) (. .)))
The element carbon is present in all organic molecules.