CREATE TABLE table_15743 ("Discipline" TEXT, "2003 Cadiz" TEXT, "2007 Cascais" TEXT, "2011 Perth" TEXT, "2014 Santander" TEXT)

Which Discipline has a 2007 laser radial Cascais ?
SELECT "Discipline" FROM table_15743 WHERE "2007 Cascais" = 'laser radial'
SELECT "Discipline" FROM "table_15743" WHERE "2007 Cascais" = 'laser radial'