Roleset disappear.01 Verbnet Class: 1 "no longer be there":

Roles:

Arg0:causal agent


Arg1:the disappeared

Examples:

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


normal usaged (-)
``If there's a problem, Peter disappears, and all of a sudden Jon shows up.''
Arg1:	Peter
REL:	disappears

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


specialized usage (-)
John learned in history class about how the government of Argentina "disappeared" many of its own citizens, often subjecting them to torture.
Arg0:	the government of Argentina
Argm-TMP:	often
REL:	disappeared
Arg1:	its own citizens

It's very sad, but that is a real usage.