Teacher:In this task, you're given a statement, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.
Teacher: Now, understand the problem? Solve this instance: Context: there is a coffin mask with encrusted glass eyes dating back to the 17th Dynasty, and other pieces which reflect the importance of animals in Egypti Link Information: The 17th Dynasty dates approximately from 1580 to 1550 BC. Question: When was the 17th Dynasty in Egyptian history?
Student:
Answer: 1580 to 1550 BC