error: symbol-override.asm(6):
    'W' already defined as constant at symbol-override.asm(5)
error: symbol-override.asm(10):
    'X' already defined as constant at symbol-override.asm(9)
error: symbol-override.asm(14):
    'Y' already defined as label at symbol-override.asm(13)
Assembly aborted with 3 errors!