Question: What was the 1st leg for Team 2 Concepto Egile?
SQL: SELECT "1st leg" FROM "2-15505376-2" WHERE "Team 2" = 'Concepto Egile';

Question: Which team 1 has team 2, Gomera?
SQL: SELECT "Team 1" FROM "2-15505376-2" WHERE "Team 2" = 'Gomera';