human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Townland, Area( acres ), Barony, Civil parish, Poor law union
###Question: What is the greatest area when the Poor Law Union is Skibbereen and the Civil Parish is Tullagh?
gpt
SELECT MAX Area( acres ) FROM table WHERE Poor law union = Skibbereen AND Civil parish = Tullagh