Translate the given Spanish text to English

[EX Q]: The substituents and variables are defined in the claims.
[EX A]: Los sustituyentes y variables se definen en las reivindicaciones.

[EX Q]: A novel light effect is achieved.
[EX A]: SE CONSIGUE UN EFECTO LUMINOSO NUEVO.

[EX Q]: A tufted mat and a method for its manufacture are described.
[EX A]:
Se describen un mallado afelpado y un método para su fabricacion.