( ( Tissues ( that ( ( do not ) ( need ( to ( ( use glucose ) ( for energy ) ) ) ) ) ) ) ( ( -LRB- ( ( for ( ( example , ) ( muscle cells ) ) ) -RRB- ) ) ( ( start ( burning ( the ( fatty acids ) ) ) ) . ) ) )
(ROOT (S (NP (NP (NNPS Tissues)) (SBAR (WHNP (WDT that)) (S (VP (VBP do) (RB not) (VP (VB need) (S (VP (TO to) (VP (VB use) (NP (NN glucose)) (PP (IN for) (NP (NN energy))))))))))) (PRN (-LRB- -LRB-) (PP (IN for) (NP (NP (NN example)) (, ,) (NP (NN muscle) (NNS cells)))) (-RRB- -RRB-)) (VP (VBP start) (S (VP (VBG burning) (NP (DT the) (JJ fatty) (NNS acids))))) (. .)))
Tissues that do not need to use glucose for energy (for example, muscle cells) start burning the fatty acids.
(ROOT (S (NP (DT All) (NNS cells)) (VP (VBP need) (NP (NP (NN glucose)) (PP (IN for) (NP (NN energy))))) (. .)))