Context: The Institute also maintains a dozen regional offices around the United Kingdom, it opened its first regional office for the East of England at Cambridge in 1966.

Question: How many satellite offices does the Royal Institute run in the UK?
Answer: a dozen

Question: When was RIBA's first satellite office opened?
Answer: 1966

Question: In what city was the first RIBA branch office opened?
Answer: Cambridge

Question: What territory did RIBA's Cambridge branch office cover?
Answer: the East of England

Question: How many satellite offices does the Royal Institute no longer run in the UK?
Answer: Unanswerable

Question: When was RIBA's last satellite office opened?
Answer: Unanswerable

Question: What city was the first RIBA branch office closed?
Answer: Unanswerable

Question: What territory did RIBA's Cambridge branch office avoid?
Answer: Unanswerable