In this task you will be given a passage and a yes/no question based on the passage. You should answer the question using the information from the passage.

passage: Hellmann's and Best Foods are brand names that are used for the same line of mayonnaise and other food products. The Hellmann's brand is sold in the United States east of the Rocky Mountains, and also in Latin America, Europe, Australia, the Middle East, Canada and South Africa. The Best Foods brand is sold in the United States west of the Rocky Mountains, and also in Asia, Australia, and New Zealand.
question: is hellmans mayo the same as best foods?
Yes

passage: The card security code is typically the last three or four digits printed, not embossed like the card number, on the signature strip on the back of the card. On American Express cards, the card security code is the four digits printed (not embossed) on the front towards the right. The card security code is not encoded on the magnetic stripe but is printed flat.
question: does american express card have a security code?
Yes

passage: Historically, the gram-positive forms made up the phylum Firmicutes, a name now used for the largest group. It includes many well-known genera such as Bacillus, Listeria, Staphylococcus, Streptococcus, Enterococcus, and Clostridium. It has also been expanded to include the Mollicutes, bacteria like Mycoplasma that lack cell walls and so cannot be stained by Gram, but are derived from such forms.
question: could bacteria that do not contain cell walls be stained using gram stain?
No