( ( Varicose veins ) ( ( ---------------- ( Veins ( which ( ( are ( very close ) ) together ) ) ) ) . ) )
(ROOT (S (NP (JJ Varicose) (NNS veins)) (VP (VBZ ----------------) (NP (NP (NNP Veins)) (SBAR (WHNP (WDT which)) (S (VP (VBP are) (ADJP (RB very) (JJ close)) (ADVP (RB together))))))) (. .)))
Varicose veins----------------Veins which are very close together.
(ROOT (S (NP (JJ Varicose) (NNS veins)) (VP (VBP are) (NP (NP (NNS veins)) (SBAR (WHNP (WDT that)) (S (VP (VBP become) (S (VP (VBG enlarged) (SBAR (IN because) (S (NP (DT the) (NNS valves)) (ADVP (RB no) (RB longer)) (VP (VB close) (ADVP (RB properly)))))))))))) (. .)))