Here's a short story:

(CNN) -- When Amanda Berry screamed Monday evening for help through a crack in the front door of the house where she was being held, she set in motion an end to roughly a decade of captivity for herself and two other women. 

Berry's case had been publicized through the years, and when Georgina DeJesus was reported missing, her case, too, became known to the public. Little has been reported about the case of Michelle Knight. 

According to Cleveland's MetroHealth Medical Center, all three women were seen in the hospital's emergency room Monday night and had been released as of Tuesday morning. 

What had happened to them -- physically, emotionally, mentally -- in the years before, though, largely remains a mystery. 

Here's more information about Berry, DeJesus and Knight and their disappearances: 

Amanda Berry 

Age: 16 when she was reported missing; now, 27. 

Missing since: April 21, 2003 

Last seen: walking home from a job at Burger King a few blocks from her home about 7:40 p.m., according to the FBI. It was the eve of her 17th birthday. 

Clues: She called her sister to tell her she was getting a ride home, CNN affiliate WJW reported. 

Appearance: The FBI missing person poster described her as 5 feet 1 inch to 5 feet 3 inches tall and weighing 105 pounds. 

Law enforcement action: The FBI had 10 postings on its website about her disappearance and offered a reward of up to $25,000 for information about her whereabouts. 

Family reaction: It was a call she'd been waiting a decade for.  (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 old is Amanda Berry?
Guess: 27
Confidence: <appropriate level of confidence in this guess>

Question: How old was she in 2003?
Guess: 16
Confidence: <appropriate level of confidence in this guess>

Now answer the following question in the same format.

Question: When was her birthday?

April 22