Roleset ripen.01 Verbnet Class: 1 "(make) become ripe":

Roles:

Arg0:causer of ripening


Arg1:thing becoming ripe

Examples:

person: ns tense: present aspect: ns voice: active form: full


unaccusative (-)
It's made only in years when the grapes ripen perfectly (the last was 1979) and comes from a single acre of grapes that yielded a mere 75 cases in 1987.
Arg1:	the grapes
REL:	ripen
ArgM-MNR:	perfectly
ArgM-TMP:	*trace* -> when -> years

person: ns tense: past aspect: ns voice: active form: full


agentive (-)
John ripened the green peaches in a paper bag.
Arg0:	John
REL:	ripened
Arg1:	the green peaches
Argm-LOC:	in a paper bag

That won't work, by the way; peaches don't get any sweeter once they leave the tree. Always buy tree-ripened peaches.