Complex sentence: World champion in judo Majlinda Kelmendi qualified for the 2012 Summer Olympics in the -52kg category, but was unable to compete under the flag of Kosovo, as the OCK was not a member of the IOC at the time.
Split into simpler sentences: World champion in judo Majlinda Kelmendi qualified for the 2012 Summer Olympics in the -52kg category. Despite the wish to compete under the flag of Kosovo, the OCK was not a member of the IOC at the time.