( ( In electronics ) ( this ( usually ( ( means ( ( a device ) ( that ( changes ( something ( that ( ( ( is not ) ( ( electrical or ) electronic ) ) ( into ( voltage levels ) ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN In) (NP (NNS electronics))) (NP (DT this)) (ADVP (RB usually)) (VP (VBZ means) (NP (NP (DT a) (NN device)) (SBAR (WHNP (WDT that)) (S (VP (VBZ changes) (NP (NP (NN something)) (SBAR (WHNP (WDT that)) (S (VP (VBZ is) (RB not) (ADJP (JJ electrical) (CC or) (JJ electronic)) (PP (IN into) (NP (JJ voltage) (NNS levels)))))))))))) (. .)))
In electronics this usually means a device that changes something that is not electrical or electronic into voltage levels.
(ROOT (S (NP (DT A) (JJ electronic) (NN transformer)) (VP (VBZ uses) (NP (JJ electromagnetic) (NN induction) (S (VP (TO to) (VP (VB change) (NP (NP (DT the) (NN voltage)) (PP (IN of) (NP (JJ electric) (NN current))))))))) (. .)))