Technological advances generally come in waves that crest and eventually subside.
( ( Technological advances ) ( generally ( ( ( ( come in ) waves ) ( ( ( ( that crest ) and ) eventually ) subside ) ) . ) ) )
(ROOT (S (NP (JJ Technological) (NNS advances)) (ADVP (RB generally)) (VP (VBP come) (PRT (RP in)) (NP (NNS waves)) (NP (NP (DT that) (NN crest)) (CC and) (ADVP (RB eventually)) (NP (NN subside)))) (. .)))
Advances in electronics come in waves.
( ( Advances ( in electronics ) ) ( ( come ( in waves ) ) . ) )
(ROOT (S (NP (NP (NNS Advances)) (PP (IN in) (NP (NNS electronics)))) (VP (VBP come) (PP (IN in) (NP (NNS waves)))) (. .)))