When was that?
( When ( ( was that ) ? ) )
(ROOT (SBARQ (WHADVP (WRB When)) (SQ (VBD was) (NP (DT that))) (. ?)))
Where was that?
( Where ( ( was that ) ? ) )
(ROOT (SBARQ (WHADVP (WRB Where)) (SQ (VBD was) (NP (DT that))) (. ?)))