Roleset plead.01 Verbnet Class: NONE "beg":

Roles:

Arg0:begger, appealer


Arg1:appealed to, begged from


Arg2:begged/appealed for

Examples:

poor John (-)
John pleaded to Mary for another serving of ice cream.
Arg0:	John
REL:	pleaded
Arg1-to:	Mary
Arg2-from:	another serving of ice cream

Roleset plead.02 Verbnet Class: NONE "state guilt or innocence":

Roles:

Arg0:the accused


Arg1:guilty or innocent


Arg2:alleged crime

Examples:

typical example (-)
Southern Co.'s Gulf Power Co. subsidiary pleaded guilty to two felony charges of conspiracy to make illegal political contributions and tax evasion, and paid $500,000 in fines.
Arg0:	Southern Co. 's Gulf Power Co. subsidiary
REL:	pleaded
Arg1:	guilty
Arg2-to:	two felony charges of conspiracy to make illegal political contributions and tax evasion

Treebank offers two different syntaxes (syntactes) for this construction. Under one, the plea and the crime are two separate nodes: (ADJP (ADJ guilty)) (PP (P to)(NP whatever)) Under the other, they are merged: (ADJP (ADJ guilty) (PP (P to) (NP whatever))) You'll have to pick apart the latter syntax to get to the arguments.