Roleset mushroom.01 Verbnet Class: 1 "grow very rapidly, as mushrooms after rain":

Roles:

Arg1:thing growing


Arg2:EXT


Arg3:start point


Arg4:end point

Examples:

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


missing EXT (-)
From 1987 to 1988, the value of Chemical's option contracts outstanding mushroomed to $37 billion from $17 billion.
ArgM-TMP:	From 1987 to 1988
Arg1:	the value of Chemical's option contracts outstanding
REL:	mushroomed
Arg4-to:	$37 billion
Arg3-from:	$17 billion

person: third tense: present aspect: perfect voice: active form: participle


intransitive/ergative (-)
The number of computers has mushroomed in recent years, with 10,000 in use, as well as 30,000 miniature models.
Arg1:	The number of computers
REL:	mushroomed
ArgM-TMP:	in recent years
ArgM:	with 10,000 in use, as well as 30,000 miniature models

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


inconvenient temporal (-)
Junk bonds, which mushroomed from less than $ 2 billion at the start of this decade, have been declining for months as issuer after issuer sank beneath the weight of hefty interest payments.
Arg1:	*trace* -> which -> Junk bonds
REL:	mushroomed
Arg3-from:	[ less than $ 2 billion ] [ at the start of this decade]

The temporal describes not the process of mushrooming, but the time at which the start state existed.