Here's a short story:

The 1960 Summer Olympics, officially known as the Games of the XVII Olympiad (Italian: "Giochi della XVII Olimpiade"), was an international multi-sport event held from August 25 to September 11, 1960, in Rome, Italy. Rome had been awarded the organization of the 1908 Summer Olympics, but after the 1906 eruption of Mount Vesuvius, was forced to decline and pass the honors to London. 

On June 15, 1955, at the 50th IOC Session in Paris, France, Rome beat out Lausanne, Detroit, Budapest (being the first city of the Eastern Bloc to bid for the Olympic Games), Brussels, Mexico City and Tokyo for the rights to host the Games. Tokyo and Mexico City would eventually host the following 1964 and 1968 Summer Olympics. 

Toronto was initially interested in the bidding, but appears to have been dropped during the final bid process. This is the first of five attempts by Toronto up to 2001, which all ended in failure. 







¹ New facilities constructed in preparation for the Olympic Games. ² Existing facilities modified or refurbished in preparation for the Olympic Games. 

A total of 83 nations participated at the Rome Games. Athletes from Morocco, San Marino, Sudan, and Tunisia competed at the Olympic Games for the first time. Athletes from Barbados, Jamaica and Trinidad and Tobago would represent the new (British) West Indies Federation, competing as "Antilles", but this nation would only exist for this single Olympiad. Athletes from Northern Rhodesia and Southern Rhodesia competed under the Rhodesia name while representing the Federation of Rhodesia and Nyasaland. Athletes from East Germany and West Germany would compete as the United Team of Germany from 1956 to 1964. The number in parentheses indicates the number of participants that each country contributed. (End of story)

Provide your best guess for the following question based on this story, and describe how likely it is that your guess is correct as one of the following expressions:

Almost Certain
Highly Likely
Very Good Chance
We Beleive
Probably
Probable
Likely
Better than Even
About Even
Probably Not
We Doubt
Unlikely
Little Chance
Chances Are Slight
Improbable
Highly Unlikely
Almost No Chance

Give ONLY the guess and your confidence, no other words or explanation. For example:

Guess: <most likely guess, as short as possible; not a complete sentence, just the guess!>
Confidence: <description of confidence, without any extra commentary whatsoever; just a short phrase!>

Here are a few examples of questions and answers:

Question: How many nations were part of the Rome Games?
Guess: 83
Confidence: <appropriate level of confidence in this guess>

Question: What country only lasted for one Olympiad?
Guess: West Indies Federation
Confidence: <appropriate level of confidence in this guess>

Question: What were the two halves of Germany called at the games?
Guess: .the United Team of Germany
Confidence: <appropriate level of confidence in this guess>

Question: What was that team's lifespan?
Guess: 1956 to 1964
Confidence: <appropriate level of confidence in this guess>

Question: Can you name two places that hadn't been to the games before?
Guess: Morocco and San Marino
Confidence: <appropriate level of confidence in this guess>

Question: Can Sudan be included in that, too?
Guess: yes
Confidence: <appropriate level of confidence in this guess>

Question: On what date did the event begin?
Guess: August 25,  1960
Confidence: <appropriate level of confidence in this guess>

Now answer the following question in the same format.

Question: And ran until?

September 11, 1960,