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: which later formed the core of government bureaucracy during the Shah and Rana period. Link Information: none Answer: none
answer:
How much time was between the periods?


question:
Context: . Middle Assyrian lead votive figurines Link Information: used to decorate cult statues, Answer:  clay, metal, wood, glass, and today plastic or resin 
answer:
What material were the symbols used by the Assyrians made of?


question:
Context: In 1990, he became a Major General, Link Information: none Answer: none
answer:

How many ranks above colonel is Major General?