21.   Assisi Best known as the birthplace of St Francis, the ancient city of Assisi has a wonderful magical quality.

22.   At that time, all newsreaders spoke a variety of English spoken in southern England, known as Received Pronunciation.

23.   At work, George was known as an uncompromising businessman.

24.   Because of the invariable growth of the counteracting force known as Regionalism, or Nationalism, the Spiritual Power can not prevail.

25.   Body rhythm is known as the inner clock or circadian rhythm.

26.   Both were playing a traditional wind instrument known as the didgeridoo.

27.   But she is best known as one of the Sumerian demons of storm and night.

28.   But snoring loudly and habitually can be an indication of a potentially life-threatening breathing disturbance known as obstructive sleep apnea syndrome.

29.   By sheer coincidence Kappa Crucis lies at the edge of the dark nebula known as the Coal Sack.

30.   Chesapeake believes there are substantial oil and gas reserves in this eastern leg of the geological formation known as the Austin chalk.