Roleset id: postmark.01 , to stamp with a postmark, Source: , vncls: , framnet: postmark.01: POSTMARK-V NOTES: Frames file for 'postmark' based on survey of sentences in the WSJ corpus. (from postmark.01-v predicate notes)
Arg0-PAG: applier of stamp, agent (vnrole: 9.9-agent)
Arg1-PPT: letter (vnrole: 9.9-theme)
Arg2-TMP: temporal attribute
person: ns,  tense: ns,  aspect: ns,  voice: passive,  form: participle
Returns for 1988 from people with six-month filing extensions were due Monday , but the IRS says  people in the disaster areas wo n't be penalized [*-1]for late filing if their returns are marked [*-2] `` Hugo '' and postmarked by Jan. 16 .
Arg1: their returns
Arg2: by Jan. 16