Tuppence frowned.
( Tuppence ( frowned . ) )
(ROOT (S (NP (NNP Tuppence)) (VP (VBD frowned)) (. .)))
Tuppence made a face, then smiled. 
( Tuppence ( ( ( ( ( made ( a face ) ) , ) then ) smiled ) . ) )
(ROOT (S (NP (NNP Tuppence)) (VP (VP (VBD made) (NP (DT a) (NN face))) (, ,) (ADVP (RB then)) (VP (VBD smiled))) (. .)))