Conversation so far:
Where is the Houston Livestock Show and Rodeo located?
The Houston Livestock Show and Rodeo has been held at NRG Stadium in Houston, Texas, since 2003.
How long does the Houston Livestock Show and Rodeo last?
The Houston Livestock Show and Rodeo is 20 days long.
How many people participate in the Houston Livestock Show and Rodeo?
In 2017, attendance reached a record high of 2,611,176 people and 33,000 volunteers.
What kind of events happen at the Houston Livestock Show and Rodeo?
The Houston Livestock Show and Rodeo features championship rodeo action, livestock competitions, concerts, a carnival, pig racing, barbecue and the Rodeo Uncorked! International Wine Competition, shopping, sales and livestock auctions.
What kind of concerts are performed at the Houston Livestock Show and Rodeo?
The majority of evenings are performances by country music singers, although several nights are dedicated to pop or rock music.

Question: Do they have food or drinks available for purchase?
Self-contained rewrite: Do they have food or drinks available for purchase at the Houston Livestock Show and Rodeo?