Problem: Duel is a 1971 television (and later full-length theatrical) thriller film written by Richard Matheson, which is based on his own short story. The film is the full-length film directing debut of American director, producer, and screenwriter Steven Spielberg.

Based on the paragraph above can we conclude that "Richard Matheson wrote the screen play for multiple movies released in the 70's."?

A: It's impossible to say

Problem: There are 26 states of Brazil, (Portuguese: "estados" ) which are the federal states of Brazil, plus the Federal District which contains the capital city, Brasilia. Below are these states listed in order of the area, from Amazonas with the greatest area, to the Federal District with the least. Brazil has a total area of 8,515,767km, and is ranked 5th in the world.

Based on the paragraph above can we conclude that "The Federal District of Brazil has a smaller area than Amazonas."?

A: Yes

Problem: The Cameroon Airlines Corporation, trading as Camair-Co, is an airline from Cameroon, serving as flag carrier of the country, a role which was previously filled by the now-defunct Cameroon Airlines. Camair-Co has its headquarters in the Immeuble La Rotonde in Douala, and operates out of Douala International Airport.

Based on the paragraph above can we conclude that "CAC only has small planes."?

A:
It's impossible to say