Here's a short story:

Hot Country Songs is a chart published weekly by "Billboard" magazine in the United States. 

This 50-position chart lists the most popular country music songs, calculated weekly by collecting airplay data from Nielsen BDS along with digital sales and streaming. 

The current number-one song, as of the chart dated for October 7, 2017, is "Body Like a Back Road" by Sam Hunt. 

"Billboard" began compiling the popularity of country songs with its January 8, 1944 issue. Only the genre's most popular jukebox selections were tabulated, with the chart titled "Most Played Juke Box Folk Records". The chart length was not standardized; a given week had anywhere from two to eight positions. 

For approximately ten years, from 1948 to 1958, "Billboard" used three charts to measure the popularity of a given song. In addition to the jukebox chart, these charts included: 

The names of each chart changed slightly during each chart's life. The "jukebox" chart – which by 1956 was known as "Most Played C&W in Juke Boxes" – ended on June 17, 1957. The "best sellers" and "jockeys" charts continued until October 13, 1958. 

Starting with the October 20, 1958 issue, "Billboard" began combining sales and radio airplay in figuring a song's overall popularity, counting them in one single chart called "Hot C&W Sides". The chart began with a standard length of 30 positions each week. The name of the chart, and the number of positions varied through the years: Its name was switched to "Hot Country Singles" on November 3, 1962; it was expanded to 50 slots on January 11, 1964; then 75 on October 15, 1966; and finally 100 beginning July 14, 1973. (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: what is the number one song on the Hot Country Songs chart in this article?
Guess: "Body Like a Back Road"
Confidence: <appropriate level of confidence in this guess>

Question: as of what date?
Guess: October 7, 2017
Confidence: <appropriate level of confidence in this guess>

Question: how many positions are on that chart?
Guess: 50
Confidence: <appropriate level of confidence in this guess>

Question: does it include streaming data too?
Guess: yes
Confidence: <appropriate level of confidence in this guess>

Question: who publishes it?
Guess: "Billboard"
Confidence: <appropriate level of confidence in this guess>

Question: is that a tv show?
Guess: no
Confidence: <appropriate level of confidence in this guess>

Question: what is it?
Guess: magazine
Confidence: <appropriate level of confidence in this guess>

Question: when did they start tracking the popularity of country songs?
Guess: January 8, 1944
Confidence: <appropriate level of confidence in this guess>

Question: what three charts did they use to measure a songs popularity?
Guess: "jukebox", "best sellers" and "jockeys"
Confidence: <appropriate level of confidence in this guess>

Question: how long did they use those for?
Guess: For approximately ten years
Confidence: <appropriate level of confidence in this guess>

Question: what years did it span?
Guess: 1948 to 1958
Confidence: <appropriate level of confidence in this guess>

Question: when did the jukebox chart end?
Guess: June 17, 1957
Confidence: <appropriate level of confidence in this guess>

Question: did the other charts end at the same time?
Guess: no
Confidence: <appropriate level of confidence in this guess>

Question: when did they end?
Guess: October 13, 1958.
Confidence: <appropriate level of confidence in this guess>

Now answer the following question in the same format.

Question: how many positions did the new C&W chart have?

30