Eh! Monsieur Lawrence, called Poirot. 
( ( ( ( Eh ( ! ( Monsieur Lawrence ) ) ) , ) ( called Poirot ) ) . )
(ROOT (NP (NP (NNP Eh) (. !) (NNP Monsieur) (NNP Lawrence)) (, ,) (VP (VBN called) (NP (NNP Poirot))) (. .)))
Poirot did not call upon Monsieur Lawrence.
( Poirot ( ( ( did not ) ( call ( upon ( Monsieur Lawrence ) ) ) ) . ) )
(ROOT (S (NP (NNP Poirot)) (VP (VBD did) (RB not) (VP (VB call) (PP (IN upon) (NP (NNP Monsieur) (NNP Lawrence))))) (. .)))