Problem: The Great Dictator is a 1940 American political satire comedy-drama film written, directed, produced, scored by and starring British comedian Charlie Chaplin, following the tradition of many of his other films. Having been the only Hollywood filmmaker to continue to make silent films well into the period of sound films, this was Chaplin's first true sound film.

Based on the paragraph above can we conclude that "Chaplin himself has dialogue in The Great Dictator."?

A: It's impossible to say

Problem: The 2015 City of Onkaparinga ATP Challenger was a professional tennis tournament played on hard courts. It was the first edition of the tournament which was part of the 2015 ATP Challenger Tour. It took place in Happy Valley, Australia between 311 January 2015.

Based on the paragraph above can we conclude that "The 2015 ATP Challenger Tour began on the third of January and ended on the eleventh of that same month."?

A: Yes

Problem: The Phu Quoc Ridgeback is a breed of dog from Phu Quoc Island in Vietnam's southern Kien Giang Province. The Phu Quoc Ridgeback is one of only three breeds that has a ridge of hair that runs along its back in the opposite direction from the rest of the coat (the others are Rhodesian Ridgeback and Thai Ridgeback). The Phu Quoc is the smallest of the three ridgeback breeds.

Based on the paragraph above can we conclude that "The Phu Quoc Ridgeback only exists in Vietnam "?

A:
It's impossible to say