instruction:
In this task, you're given a context, further information available on a particular linked term from the statement, and an answer term. Your job is to generate a question that can use the information provided to obtain the given answer. You should use the information on both context and link information to create the question. Note that the answer to the question should be exactly the given answer, and if the answer is none, the answer to the question shouldn't be obtainable from the context or linked information.
question:
Context: due to the unpopular edict by Emperor Domitian that all colonial vines must be uprooted. When Emperor Probus, the son of a gardener, rescinded the edict Link Information: Domitian (; ; 24 October 51 – 18 September 96 AD) was Roman emperor from 81 to 96 Answer: 180
answer:
How many years were between the end of the Emperor's reign who called for all colonial vines to be uprooted and the beginning of the reign where the son of a gardener rescinded the edict?


question:
Context: He was offered, but declined, the position of Poet Laureate in 1984, following the death of Sir John Betjeman. Link Information: none Answer: none
answer:
Who actually became Poet Laureate following the dfeath of Sir John Betjeman?


question:
Context: The Complete Compleat Enchanter Link Information: none Answer: none
answer:

How many other books did Baen Books publish the year it published The Complete Compleat Enchanter?