Frames file for 'ambush' based on survey of sentences in the WSJ
corpus.
Roleset ambush.01 "to attack":
Roles:
Arg0:ambusher, agent
Arg1:entity ambushed
Examples:
transitive (-)
person: ns
tense: past
aspect: ns
voice: active
form: full
Nicaragua 's Defense Ministry said [0] a group of Contra rebels ambushed two trucks carrying troops in northern Nicaragua , [*-1] killing 18 of the soldiers .