[DAS2] unary properties

[Helt,Gregg]

Looks to me like these might be GO terms, which should probably be
represented more like:

<PROP key="gene_ontology" value="rRNA modification" />

and possibly include an href to a description of that GO term.

Of course one could argue whether the attribute values should be URI
references rather than arbitrary strings, but you get the idea.

	gregg

> -----Original Message-----
> From: Nomi Harris [mailto:nomi at fruitfly.org]
> Sent: Thursday, February 09, 2006 12:56 PM
> To: Andrew Dalke; allenday at ucla.edu
> Cc: nomi at fruitfly.org; Helt,Gregg
> Subject: Re: [DAS2] unary properties
> 
> On 9 February 2006, Nomi Harris wrote:
>  > the valueless (or keyless) properties in the yeast data look like
>  >       <PROP ptype="property/molecular_function unknown"/>
> 
> i just looked at another region and found some more interesting
valuless
> (though i think they should be called keyless) properties:
> 
>         <PROP key="rRNA modification" value="" href=""/>
>       <PROP key="nucleolus" value="" href=""/>
>       <PROP key="snRNA 2'-O-ribose methylation guide activity"
value=""
> href=""/>
> 
> these really seem to me to be missing important information.
"nucleous"?
> we're going to randomly mention cell parts?  what this really should
say
> is
>       <PROP key="cellular_component" value="nucleolus"/>
> right?
> 
> so i think this is buggy data--it is missing the keys, and that should
be
> fixed.  in fact, i think having the spec insist that properties have
both
> key and value would help to catch errors like this.
> 
>         Nomi