Roleset nosedive.01 Verbnet Class: NONE "fall very fast":

Roles:

Arg1:Logical subject, patient, thing falling


Arg2:EXT, amount fallen


Arg3:start point


Arg4:end point, end state of arg1


ArgM-LOC:medium

Examples:

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


another verb of quantifiable motion, you know the drill (-)
Compaq Computer nose-dived $8.625 a share, to $100, and pulled other technology issues lower after reporting lower-than-expected earnings after the stock market closed Wednesday.
Arg1:	Compaq Computer
REL:	nosedived
Arg2-EXT:	$8.625 a share
Arg4-to:	$100

Note that "nosedived" is a confirmation of the lexicalist hypothesis and Blocking--most people would say the past tense of "dived" is "dove", but "nosedive" is apparently no longer associated with "dive" and thus does not take the irregular past tense. Cool.