R1: CreateKB response is KB
name(/ResponseMessage[1]/*[1]) = 'KB'

R1: CreateKB response KB is named correctly
count(/ResponseMessage[1]/*[1][@kb='http://www.owllink.org/examples/KB_1']) = 1

R2: Set response OK or Error
name(/ResponseMessage[1]/*[2]) = 'OK' or name(/ResponseMessage[1]/*[2]) = 'Error'

R3: GetSettings response is Settings element
name(/ResponseMessage[1]/*[3]) = 'Settings'

R3: Setting changed? (or not available)
string(/ResponseMessage[1]/*[3]/Setting[@key='abbreviatesIRIs']/Literal)='true' or not(boolean(/ResponseMessage[1]/*[3]/Setting[@key='abbreviatesIRIs']/Literal))

R4: ReleaseKB response OK
name(/ResponseMessage[1]/*[4]) = 'OK'