Here's a short story:

In physics, energy is a property of objects which can be transferred to other objects or converted into different forms. The "ability of a system to perform work" is a common description, but it is difficult to give one single comprehensive definition of energy because of its many forms. For instance, in SI units, energy is measured in joules, and one joule is defined "mechanically", being the energy transferred to an object by the mechanical work of moving it a distance of 1 metre against a force of 1 newton.[note 1] However, there are many other definitions of energy, depending on the context, such as thermal energy, radiant energy, electromagnetic, nuclear, etc., where definitions are derived that are the most convenient. 

Common energy forms include the kinetic energy of a moving object, the potential energy stored by an object's position in a force field (gravitational, electric or magnetic), the elastic energy stored by stretching solid objects, the chemical energy released when a fuel burns, the radiant energy carried by light, and the thermal energy due to an object's temperature. All of the many forms of energy are convertible to other kinds of energy. In Newtonian physics, there is a universal law of conservation of energy which says that energy can be neither created nor be destroyed; however, it can change from one form to another. (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 a common definition of energy?
Guess: the ability of a system to do work
Confidence: <appropriate level of confidence in this guess>

Question: How is it defined in physics?
Guess: a property of objects which can be transferred or converted
Confidence: <appropriate level of confidence in this guess>

Question: Are there many forms of energy?
Guess: yes
Confidence: <appropriate level of confidence in this guess>

Question: what are some kinds of energy?
Guess: thermal, radiant, nuclear, electromagnetic
Confidence: <appropriate level of confidence in this guess>

Question: What are some comon kinds of energy?
Guess: kinetic, potential, elastic, chemical, therma;, radiant
Confidence: <appropriate level of confidence in this guess>

Question: can one form be transformed into another?
Guess: yes
Confidence: <appropriate level of confidence in this guess>

Question: Can it be made?
Guess: no
Confidence: <appropriate level of confidence in this guess>

Question: can it be destroyed?
Guess: no
Confidence: <appropriate level of confidence in this guess>

Question: are there different ways of measuring it?
Guess: yes
Confidence: <appropriate level of confidence in this guess>

Question: what is one way?
Guess: in joules
Confidence: <appropriate level of confidence in this guess>

Question: what is a joule?
Guess: a measure of energy transfer
Confidence: <appropriate level of confidence in this guess>

Question: Is there a single way of defining it?
Guess: no
Confidence: <appropriate level of confidence in this guess>

Now answer the following question in the same format.

Question: How are different meanings contrived?

it depends on the context