XML Session 5 Live

[Select One] RDF...

• provides a clear hierarchy

• allows blank nodes without a URI

• requires the use of a schema

• expresses information as subject-adjective-predicate triples

[True/False] Linked data uses URIs/IRIs as unique identifiers for entities.

• True

• False

[Select One] SPARQL...

• is a read-only query language

• uses variables to represent unknown/unspecified entities or predicates

• uses the same syntax as SQL

• queries information from a single graph

[Select One] In RDF, blank nodes...

• enable easy external reference

• have the form _:name

• are not linked to any literals

• Do not have a URIref

[Select All] What does the following SPARQL query do? Select all that apply!

• Sorts by person_name, then city_name.

• Finds people who currently live in the city they where born in.

• Does not list duplicate results.

• Lists persons and cities by their respective names.