( ( A ( textbook description ) ) ( ( demonstrates ( that ( ( ( hair cells ) ( in ( the ( ear canal ) ) ) ) ( will ( ( ( ( wear down ) ( after ( each exposure ) ) ) and ) ( recover ( after ( each ( rest period ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT A) (NN textbook) (NN description)) (VP (VBZ demonstrates) (SBAR (IN that) (S (NP (NP (NN hair) (NNS cells)) (PP (IN in) (NP (DT the) (NN ear) (NN canal)))) (VP (MD will) (VP (VP (VB wear) (PRT (RP down)) (PP (IN after) (NP (DT each) (NN exposure)))) (CC and) (VP (VB recover) (PP (IN after) (NP (DT each) (NN rest) (NN period))))))))) (. .)))
A textbook description demonstrates that hair cells in the ear canal will wear down after each exposure and recover after each rest period.
(ROOT (NP (NP (NP (DT The) (NN hair) (NNS cells) (NN sense)) (PRN (-LRB- -LRB-) (PRP s) (-RRB- -RRB-))) (NP (NP (DT the) (NN movement)) (PP (IN of) (NP (ADJP (JJ liquid) (PP (IN in) (NP (NN ear)))) (NNS canals)))) (. .)))