instruction:
Translate the given Spanish text to English
question:
In this way, an optical tracker and the associated cameras are not necessary.
answer:
De esta manera, se puede prescindir de un rastreador óptico y de las cámaras asociadas.


question:
A web is provided.
answer:
Se proporciona un tejido.


question:
A carton for holding a plurality of containers.
answer:

Una caja de cartón para contener una pluralidad de envases.