Roleset ebb.01 Verbnet Class: NONE "become smaller/lower":

Roles:

Arg1:thing getting smaller

Examples:

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


unaccusative (-)
Although viewership soars when big news breaks, it ebbs during periods of calm.
ArgM-ADV:	Although viewership soars when big news breaks
Arg1:	it
REL:	ebbs
ArgM-TMP:	during periods of calm

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


with awkward modifier (-)
Mr. Greenberg, noting that stock-index arbitrage rises and ebbs with stock market's volatility, said...
Arg1:	stock-index arbitrage
REL:	ebbs
ArgM-CAU:	with stock market's volatility