Problem: The Rhodesian ridgeback is a dog breed developed in South Africa. Its European forebears can be traced to the early pioneers of the Cape Colony of southern Africa, who crossed their dogs with the semi-domesticated, ridged hunting dogs of the Khoikhoi.

Based on the paragraph above can we conclude that "Khoikhoi are hunting dogs"?

A: Yes

Problem: Innyaly (Russian: ) is a rural locality (a "selo") in Tolonsky Rural Okrug of Lensky District in the Sakha Republic, Russia, located 336 km from Lensk, the administrative center of the district and 30 km from Tolon, the administrative center of the rural okrug. Its population as of the 2002 Census was169.

Based on the paragraph above can we conclude that "Innyaly's population is under 170 as of 2002."?

A: Yes

Problem: Fan and Mortar Geysers are two geysers in the Upper Geyser Basin in Yellowstone National Park. For the past several decades, they have erupted in concert with one another and are generally talked about together. The records detailing these geysers' known eruptive history shows that they have been infrequent and irregular performers.

Based on the paragraph above can we conclude that "Yellowstone is the oldest national park in existence"?

A:
It's impossible to say