I used a translator to convert it. Not sure what the syrup is.. any ideas?

Perfect Margarita

The best margarita this side of the border.
Made with 1800 Tequila, Cointreau, Grand Marnier, our special mix and freshly squeezed lime juice. Served with a shaker tin and strainer.

1 1/4 oz Cuervo 1800
1/2 oz Cointreau
1/2 oz Grand Marnier
1/2 oz syrup
1 1/2 oz fresh juice lime juice
4 oz sweet-n-sour mix
Lemon lime soda

You add the materials You supplement with icecubes. Shake. You serve in frozen glass cocktail with salted edge, you nail a olive in a piece lemon.

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Editor's note:
Thanks Cheryl - the syrup may be 'simple syrup' - Betsy