( ( ( The error ) ( -LRB- ( ( difference ( between ( ( theory and ) experiment ) ) ) -RRB- ) ) ) ( ( decreases ( as ( ( the number ) ( of ( measurements increases ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN error)) (PRN (-LRB- -LRB-) (NP (NP (NN difference)) (PP (IN between) (NP (NN theory) (CC and) (NN experiment)))) (-RRB- -RRB-))) (VP (VBZ decreases) (PP (IN as) (NP (NP (DT the) (NN number)) (PP (IN of) (NP (NNS measurements) (NNS increases)))))) (. .)))
The error (difference between theory and experiment) decreases as the number of measurements increases.
(ROOT (S (NP (PRP You)) (ADVP (NP (NP (NN decrease) (NNS errors)) (PP (IN in) (NP (DT an) (NN experiment)))) (IN by)) (VP (VBP take) (NP (JJ many) (NNS measurements))) (. .)))