<human>: Q: What is common about the surviving mosaics from the 7th-9th centuries?
 A: Among the rare examples are the 6th-century Christ in majesty (or Ezekiel's Vision) mosaic in the apse of the Church of Hosios David in Thessaloniki that was hidden behind mortar during those dangerous times.
 Does the answer correctly answer the question

OPTIONS:
- yes
- no
<bot>: no