user: ### NOW ANSWER:
Question: What is the production number of From Hare to Heir?
Columns: ['Title', 'Series', 'Director', 'Production Number', 'Release date']
Types: ['text', 'text', 'text', 'real', 'text']
Sample row: ['Fastest with the Mostest', 'LT', 'Chuck Jones', 1536.0, '1960-01-09']
SQL:

assistant: SELECT SUM("Production Number") FROM "Table" WHERE "Title" = 'From Hare to Heir';