user: Question: What is the 1913 class of locomotive that has a 1st built value under 494 and WA of 4-4-0T?
Columns: ['1st built', '1913 Class', 'W.A.', 'No. Built', 'Builder', 'Date', 'LNER Class']
Types: ['real', 'text', 'text', 'real', 'text', 'text', 'text']
Sample row: [474.0, '—', '2-2-2', 2.0, 'Neilson', '1876', '—']
SQL:

assistant: SELECT "1913 Class" FROM "Table" WHERE "1st built" < 494.0 AND "W.A." = '4-4-0T';