( ( How ( earwax ( is produced ) ) ) ( ( ( is , ) ( it ( ( ( 's ( made ( in ( the ( ear canal ) ) ) ) ) and ) ( is ( ( ( pushed out ) ( by ( little ( hair cells ) ) ) ) ( in ( the ear ) ) ) ) ) ) ) . ) )
(ROOT (S (SBAR (WHADVP (WRB How)) (S (NP (NN earwax)) (VP (VBZ is) (VP (VBN produced))))) (VP (VBZ is) (, ,) (SBAR (S (NP (PRP it)) (VP (VP (VBZ 's) (VP (VBN made) (PP (IN in) (NP (DT the) (NN ear) (NN canal))))) (CC and) (VP (VBZ is) (VP (VBN pushed) (PRT (RP out)) (PP (IN by) (NP (JJ little) (NN hair) (NNS cells))) (PP (IN in) (NP (DT the) (NN ear))))))))) (. .)))
How earwax is produced is, it's made in the ear canal and is pushed out by little hair cells in the ear.
(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)))) (. .)))