Here's a short story:

A patient on the brink of death has received the world's first self--contained artificial heart--a battery--powered device about the size of a softball that runs without the need for wires,tubes sticking out of the chest.It is powered by a small battery pack worn outside the body that transmits current through the skin. 

Two surgeons from the University of Louisville implanted the titanium and plastic pump during a seven-hour operation at Jewish Hospital Monday.The hospital said the patient was''awake and responsive''Tuesday and resting comibrtably.It refused to eve personal details. 

The patient had been expected to die within a month without the operation, and doctors said they expected the artificial heart to extend the person's life by only a month.But the device is considered a major step toward inlproving the patient's quality of life. 

The new pump,called AbioCor,is also a technological leap from the mechanical hearts used in the l980s, which were attached by wires and tubes to large machinery outside the body.The most famous of those, the Jarvic-7,used air as a pumping device and was attached to an apparatus about the size of a washing machine. 

''I think it's potentially a major step forward in the artificial heart development,''said Dr.David Faxon,president of the American heart Association.However,he said the dream of an implantable,permanent artificial heart is not yet a reality:''This is obviously an experimental device whose long--term success has to be demonstrated."Only about half of the 4,200 Americans on a waiting list for donor hearts received them last year,and most of the rest died. 

Some doctors,including Robert Higgins,chairman of cardiology at the Medical College of Virginia in Richmond,said artificial hearts are unlikely to replace donor hearts."A donor heart in a good transplant can last l5 to 30 years.''he said.''It's going be hard replace that with a machine.'' (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 was implanted on MOnday?
Guess: artificial heart
Confidence: <appropriate level of confidence in this guess>

Question: Was this common?
Guess: no
Confidence: <appropriate level of confidence in this guess>

Question: How many times has it been done?
Guess: this is the first
Confidence: <appropriate level of confidence in this guess>

Question: Who implanted it?
Guess: Two surgeons
Confidence: <appropriate level of confidence in this guess>

Question: from where?
Guess: University of Louisville
Confidence: <appropriate level of confidence in this guess>

Question: How does the heart work?
Guess: battery--powered
Confidence: <appropriate level of confidence in this guess>

Question: Where is the battery?
Guess: outside the body
Confidence: <appropriate level of confidence in this guess>

Question: and how does it work?
Guess: transmits current through the skin.
Confidence: <appropriate level of confidence in this guess>

Question: how is the patient doing?
Guess: awake and responsive
Confidence: <appropriate level of confidence in this guess>

Question: How was the persons health before?
Guess: expected to die within a month
Confidence: <appropriate level of confidence in this guess>

Question: and now?
Guess: xtend the person's life by only a month
Confidence: <appropriate level of confidence in this guess>

Question: how many are on the donor list?
Guess: 4,200
Confidence: <appropriate level of confidence in this guess>

Question: how many will receive a transplant?
Guess: about half
Confidence: <appropriate level of confidence in this guess>

Question: how about the rest?
Guess: die
Confidence: <appropriate level of confidence in this guess>

Question: will these replace donor hearts?
Guess: unlikely
Confidence: <appropriate level of confidence in this guess>

Question: who says?
Guess: Robert Higgins
Confidence: <appropriate level of confidence in this guess>

Now answer the following question in the same format.

Question: where is he from?

chairman of cardiology