user: ### NOW ANSWER:
Question: What is the Unit for the Aircraft F.E.2b, located in Logeast?
Columns: ['Date', 'Unit', 'Aircraft', 'Opponent', 'Location']
Types: ['text', 'real', 'text', 'text', 'text']
Sample row: ['15 July 1916', 23.0, 'F.E.2b', 'AGO C (DESF)', 'Bapaume']
SQL:

assistant: SELECT SUM("Unit") FROM "Table" WHERE "Aircraft" = 'F.E.2b' AND "Location" = 'Logeast';