user: Question: who is the the incumbent with opponent being Anthony Weiner (D) unopposed
Columns: ['District', 'Incumbent', 'Party', 'Elected', 'Status', 'Opponent']
Types: ['real', 'text', 'text', 'real', 'text', 'text']
Sample row: [1.0, 'Tim Bishop', 'Democrat', 2002.0, 'Reelected', 'Tim Bishop (D) 62.2% Italo Zanzi (R) 37.8%']
SQL:

assistant: SELECT "Incumbent" FROM "Table" WHERE "Opponent" = 'Anthony Weiner (D) unopposed';