Hi,
Try the following SPARQL
select ?p ?o
where{
<http://dbpedia.org/resource/The_Great_Train_Wreck_of_1856>
?p
?o
}
It will all the results the dbpedia has on that subject including:
?p = http://dbpedia.org/property/cause
?o = human error
My question is why is the object a text string and not a URI?
If you lookup a disease, say Malaria, you can find its cause in the abstract as
text but you cannot ask the question what causes Malaria and have it answered
in dbpedia. I know these are difficult to extract but has anyone thought about
doing this? Why is cause in the infobox of the train wreck but not in that of
the disease? In Malaria the infobox points to a diseasedb reference (7728) can
I follow that somehow to get the cause of malaria as a URI, and can that URI be
used usefully with dbpedia?
Another question is that why cant I find the train wreck triple when I do the
following:
grep The_Great_Train_Wreck_of_1856 infobox_en.nt
In fact I cant find it (the train wreck cause triple) in any of the files (I am
looking at files i downloaded 2 months ago and querying dbpedia live but has
this cause property been added to the infobox this recently?)
Thanks!
Marv
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