However, when I highlighted antecedent , what appeared on the screen was the same list of synonyms but with antecedent missing, and preceding had reappeared.
( However ( , ( ( ( ( ( ( when ( I ( highlighted ( ( antecedent , ) ( what ( appeared ( on ( the screen ) ) ) ) ) ) ) ) ( ( was ( ( the ( same list ) ) ( of synonyms ) ) ) ( but ( with ( antecedent missing ) ) ) ) ) , ) and ) ( preceding ( had reappeared ) ) ) . ) ) )
(ROOT (S (ADVP (RB However)) (, ,) (S (SBAR (WHADVP (WRB when)) (S (NP (PRP I)) (VP (VBD highlighted) (NP (NP (NN antecedent)) (, ,) (SBAR (WHNP (WP what)) (S (VP (VBD appeared) (PP (IN on) (NP (DT the) (NN screen)))))))))) (VP (VBD was) (NP (NP (DT the) (JJ same) (NN list)) (PP (IN of) (NP (NNS synonyms)))) (PP (CC but) (PP (IN with) (NP (NN antecedent) (VBG missing)))))) (, ,) (CC and) (S (NP (VBG preceding)) (VP (VBD had) (VP (VBN reappeared)))) (. .)))
When I highlighted the word antecedent, the synonym list was identical but preceding had returned.
( ( ( ( ( When ( I ( highlighted ( the ( word antecedent ) ) ) ) ) ( , ( ( the ( synonym list ) ) ( was identical ) ) ) ) but ) ( preceding ( had returned ) ) ) . )
(ROOT (S (S (SBAR (WHADVP (WRB When)) (S (NP (PRP I)) (VP (VBD highlighted) (NP (DT the) (NN word) (NN antecedent))))) (, ,) (NP (DT the) (NN synonym) (NN list)) (VP (VBD was) (ADJP (JJ identical)))) (CC but) (S (NP (VBG preceding)) (VP (VBD had) (VP (VBN returned)))) (. .)))