can only point the way -- but thank goodness for this signpost 
(ROOT (S (S (VP (MD can) (ADVP (RB only)) (VP (VB point) (NP (DT the) (NN way))))) (, --) (CC but) (S (VP (VBP thank) (NP (NN goodness)) (PP (IN for) (NP (DT this) (NN signpost)))))))
(ROOT (S (S (VP (MD ) (ADVP (RB )) (VP (VB ) (NP (DT ) (NN ))))) (, ) (CC ) (S (VP (VBP ) (NP (NN )) (PP (IN ) (NP (DT ) (NN )))))))