Definition: Translate the given Spanish text to English

Positive Example 1 -
Input: A method for converting a series of m-bit information words to a modulated signal is described.
Output: Se describe un método para convertir una serie de palabras de informacion de bits m a una señal modulada.

Positive Example 2 -
Input: A last plastic cover is applied as a final protection.
Output: La presente invencion comprende un nuevo mezclador termocinetico.

Negative Example 1 -
Input: Luminescent optical sensor.
Output: SENSOR OPTICO LUMINISCENTE.

Negative Example 2 -
Input: The urinal is similar to a common toilet.
Output: El común es similar a un inodoro orinal.

Now complete the following example -
Input: The invention relates to aromas and aroma compositions, which contain 4,8 dimethyl 3, 7 nonadien 2 one and which can be used in foodstuffs and luxury foods or in preparations used for oral hygiene.
Output: Aromas y composiciones aromaticas que contienen 4,8-dimetil-3,7-nonadien-2-ona se pueden emplear en productos alimenticios y estimulantes, o en preparados para la higiene bucal.