
Tengo alergia a los frutos secos. I would use this phrase to inform the waiter/waitress about my allergy when ordering food at a restaurant.

No tengo frutos secos. I would use this phrase to inform the waiter/waitress that I don't have any nuts.

Baroque art features strong contrasts, while Rococo art prefers more subtle transitions

Baroque art is generally larger in scale than Rococo art