Definition: 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'.
Input: Context: She joined the faculty at the University of California, Berkeley in 1991. Link Information: Berkeley spent $789 million on research and development (R&D). There are 1,620 full-time and 500 part-time faculty members Question: What is the faculty size of eh school where Yelick joined the faculty in 1991?
Output:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Answer:  1,620 full-time and 500 part-time faculty members