Closed nschneid closed 10 years ago
:poss is indeed a little tricky at times. Let me share a little of the original motivation.
As the AMR help page at http://www.isi.edu/~ulf/amr/lib/popup/poss.html describes it, the role :poss ("possessed by") is a very general form of possession. Often used with possessive pronouns, as well as of and 's .
We sometimes use :poss for pertainymns as well, when they are equivalent to semantically equivalent expressions using possessives/'s/of, e.g.
I agree that consistency remains a bit of a challenge. For expressions of the type "at the end of the year," different annotators have been using different annotations:
Our consensus was to use :part/:part-of only for physical parts of a physical objects. See http://www.isi.edu/~ulf/amr/lib/popup/poss.html I would also hesitate to use end-01, as I don't really see a primary ending event here, and this solution wouldn't work too well with similar expressions such as "middle of the year".
I understand that :poss
originally had a very broad scope, but since then we have created roles for expressing more semantic entity-entity relations, such as :part-of
, :consist-of
, and :employed-by
. My suggestions above assume that :poss
is most appropriate for semantic possession/ownership, and is no longer appropriate for most other uses of the 's-genitive, of-genitive, or (for that matter) noun-noun compound constructions.
naval officials = officials of the navy = the navy's officials
True, but isn't this also paraphrasable as navy officials (which would suggest :mod
, if not :employed-by
)?
Russian president = president of Russia
I realize that the "official role in an institution" relation is not well captured by any of the more semanticky options at our disposal, which is why we fall back to :poss
. Ideally we would have a frame for president
. But I wasn't proposing to change these.
Our consensus was to use :part/:part-of only for physical parts of a physical objects.
The guidelines have unit of the company with :part
. I don't see a need to limit it to physical parts, though we would need a variety of examples to ensure consistency.
For expressions of the type "at the end of the year," different annotators have been using different annotations
Another possibility would be end :subevent-of year
, which suggests a temporal subdivision rather than a physical one.
I should add that the original post lists all the instances of :poss
I could find in the consensus that I thought had a better alternative. So changing them should not require extensive digging for similar cases.
OK, I can see that in a few cases, :poss seems a bit weird. I'm personally fine with :mod for academic/fiscal year and possibly with :part-of for area of the factory. For expressions such as mid-1950s, would middle be a :subevent-of the decade?
The suggestions for change given for the examples found in the consensus seem reasonable.
OK. Consensus to change the :poss under academic year and fiscal year to :mod. Updated.
Closing this in favor of #110.
consensus isi_0001.28 (snt. 27 in workset guidelines, last updated on Mon May 14, 2012) naval officials
I would've used
:employed-by
or:mod
here, definitely not:poss
.consensus isi_0002.170 (snt. 207 in workset guidelines, last updated on Mon Mar 4, 2013) academic year 2011-2012
Suggestion:
:mod
consensus isi_0002.171 (snt. 208 in workset guidelines, last updated on Mon Mar 4, 2013) United States government fiscal year 2012
Suggestion:
:mod
Part/area of factory. Suggestion:
:part-of
End of time period. Suggestion:
:part-of
Highway's exits. Suggestion:
:part-of
Shares of stock. Suggestion:
:consist-of