PREFIX vitro: <http://vitro.mannlib.cornell.edu/ns/vitro/0.7#> 
PREFIX owl:   <http://www.w3.org/2002/07/owl#> 
PREFIX rdf:   <http://www.w3.org/1999/02/22-rdf-syntax-ns#>

ASK {
       <http://vitro.mannlib.cornell.edu/default/vitro-kb-2> vitro:updatedToOntology ?u .
       ?u vitro:toOntologyVersion "1.7" .
}