What is the question "What is the formula to calculate pi ?" asking about?

OPTIONS:
- description
- entity
- abbreviation
- human
- numeric
- location
A: entity

What is the question "What Las Vegas hotel burned in November , 1980 , with the loss of 84 lives ?" asking about?

OPTIONS:
- description
- entity
- abbreviation
- human
- numeric
- location
A: location

What is the question "What 's the second-biggest-selling magazine in America ?" asking about?

OPTIONS:
- description
- entity
- abbreviation
- human
- numeric
- location
A: entity

What is the question "Who liberated 19th century Sicily and Naples ?" asking about?

OPTIONS:
- description
- entity
- abbreviation
- human
- numeric
- location
A:
human