Piccadilly Tube station.
( Piccadilly ( ( Tube station ) . ) )
(ROOT (S (ADVP (RB Piccadilly)) (VP (VB Tube) (NP (NN station))) (. .)))
Piccadilly subway station. 
( Piccadilly ( ( subway station ) . ) )
(ROOT (FRAG (ADVP (RB Piccadilly)) (NP (NN subway) (NN station)) (. .)))