Pray be seated, mademoiselle.
( Pray ( ( be seated ) ( , ( mademoiselle . ) ) ) )
(ROOT (S (ADVP (RB Pray)) (S (VP (VB be) (VP (VBN seated)))) (, ,) (VP (VBP mademoiselle)) (. .)))
Please, everyone be seated.
( Please ( , ( everyone ( ( be seated ) . ) ) ) )
(ROOT (S (INTJ (UH Please)) (, ,) (NP (NN everyone)) (VP (VB be) (VP (VBN seated))) (. .)))