user: Question: What was the team 1 for the tie that had a first leg score of 2-3?
Columns: ['Team 1', 'Agg.', 'Team 2', '1st leg', '2nd leg']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Iwuanyanwu Nationale', '4-3', 'Tonnerre Yaoundé', '2-0', '2-3']
SQL:

assistant: SELECT "Team 1" FROM "Table" WHERE "1st leg" = '2-3';