Add extraction condition that subject equals to endpoint URI
Add extraction condition that subject equals to endpoint URI

For example: BioSamples whose Service Description has a number of
             other endpoints information

dbcls/umakadata,level-five/umakadata-1,level-five/umakadata-1,level-five/umakadata-1,dbcls/umakadata,dbcls/umakadata,level-five/umakadata-1,dbcls/umakadata