user: Question: Who is the second member that was elected in 1555?
Columns: ['Summoned', 'Elected', 'Assembled', 'Dissolved', '1st member', '2nd member']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['14 August 1553', '1553', '5 October 1553', '5 December 1553', 'Edmund Mordaunt', 'Thomas Leigh']
SQL:

assistant: SELECT "2nd member" FROM "Table" WHERE "Elected" = '1555';