( ( ( The ( resonant frequencies ) ) ( of ( a string ) ) ) ( ( are ( determined ( by ( ( the length ) ( between ( ( ( the ( fixed ends ) ) and ) ( ( the tension ) ( of ( the string ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (JJ resonant) (NNS frequencies)) (PP (IN of) (NP (DT a) (NN string)))) (VP (VBP are) (VP (VBN determined) (PP (IN by) (NP (NP (DT the) (NN length)) (PP (IN between) (NP (NP (DT the) (VBN fixed) (NNS ends)) (CC and) (NP (NP (DT the) (NN tension)) (PP (IN of) (NP (DT the) (NN string)))))))))) (. .)))
The resonant frequencies of a string are determined by the length between the fixed ends and the tension of the string.
(ROOT (S (NP (JJ Stringed) (NNS instruments)) (VP (MD can) (VP (VB help) (VP (VB show) (NP (NP (DT the) (NN relationship)) (PP (IN between) (NP (NN tension) (CC and) (NNS frequencies)))) (PP (IN in) (NP (NNS strings)))))) (. .)))