Here's a short story:

(CNN) -- The White House may be the official residence of the U.S. president, but it's only a temporary address. The former homes and libraries of presidents offer an inside look into the lives of the select few who served as the nation's leader. 

Nearly 80 million visitors have toured Mount Vernon, George Washington's home in Virginia. 

From simple log cabins to expansive estates, hundreds of presidential homes and historical sites are open to the public. Visitors can read the love letters between Harry Truman and his wife, Bess, examine hand-drawn maps by Herbert Hoover or eye the tintype photograph of young wife Lucy that Rutherford B. Hayes carried with him daily on Civil War battlefields and later in the White House. 

As we witness a new leader take office and celebrate past commanders-in-chief on President's Day this month, CNN asked William Clotworthy, author of "Homes and Libraries of the Presidents," to recommend five places for travelers to see a very human side of history's presidents. 

Lincoln's birthplace 

There's more than split rails at the Abraham Lincoln Birthplace National Historic Site in Hodgenville, Kentucky. The site, run by the National Park Service, offers exhibits and walking tours so the visitor can experience a little of the frontier life that shaped the nation's 16th president. 

The centerpiece is the large marble and granite Lincoln Memorial Building, which houses a small and humble log cabin. The cabin is not actually Lincoln's birth cabin -- that has been lost to history -- but it does try to replicate as closely as possible the tiny and primitive surroundings that sheltered the future commander in chief.  (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: Who is interviewed in the story?
Guess: William Clotworthy
Confidence: <appropriate level of confidence in this guess>

Question: What is his occupation?
Guess: author
Confidence: <appropriate level of confidence in this guess>

Question: What did he write?
Guess: "Homes and Libraries of the Presidents,"
Confidence: <appropriate level of confidence in this guess>

Question: What did he suggest to the interviewer?
Guess: to recommend five places for travelers to see a very human side of history's presidents.
Confidence: <appropriate level of confidence in this guess>

Question: How many places are there dedicated to those former executives?
Guess: unknown
Confidence: <appropriate level of confidence in this guess>

Now answer the following question in the same format.

Question: Which number president was Lincoln?

16th