Here's a short story:

In logic, a logical connective (also called a logical operator, sentential connective, or sentential operator) is a symbol or word used to connect two or more sentences (of either a formal or a natural language) in a grammatically valid way, such that the value of the compound sentence produced depends only on that of the original sentences and on the meaning of the connective. 

The most common logical connectives are binary connectives (also called dyadic connectives) which join two sentences which can be thought of as the function's operands. Also commonly, negation is considered to be a unary connective. 

Logical connectives along with quantifiers are the two main types of logical constants used in formal systems such as propositional logic and predicate logic. Semantics of a logical connective is often, but not always, presented as a truth function. 

A logical connective is similar to but not equivalent to a conditional operator. 

In the grammar of natural languages two sentences may be joined by a grammatical conjunction to form a "grammatically" compound sentence. Some but not all such grammatical conjunctions are truth functions. For example, consider the following sentences: 

The words "and" and "so" are "grammatical" conjunctions joining the sentences (A) and (B) to form the compound sentences (C) and (D). The "and" in (C) is a "logical" connective, since the truth of (C) is completely determined by (A) and (B): it would make no sense to affirm (A) and (B) but deny (C). However, "so" in (D) is not a logical connective, since it would be quite reasonable to affirm (A) and (B) but deny (D): perhaps, after all, Jill went up the hill to fetch a pail of water, not because Jack had gone up the hill at all. (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 logical connective?
Guess: a symbol or word used to connect two or more sentences
Confidence: <appropriate level of confidence in this guess>

Question: What is it also known as?
Guess: a logical operator
Confidence: <appropriate level of confidence in this guess>

Question: What are the most common connectives?
Guess: binary connectives
Confidence: <appropriate level of confidence in this guess>

Question: Is a logic connective the same as a conditional operator?
Guess: its similar to but not equivalent
Confidence: <appropriate level of confidence in this guess>

Question: What is negation?
Guess: a unary connective.
Confidence: <appropriate level of confidence in this guess>

Question: What can be used in natural language to join two sentences?
Guess: a grammatical conjunction
Confidence: <appropriate level of confidence in this guess>

Question: Are grammatical conjunctions truth functions?
Guess: Some
Confidence: <appropriate level of confidence in this guess>

Question: What are examples of gramatical conjunctions?
Guess: The words "and" and "so" are "grammatical" conjunctions joining the sentences (A) and (B) to form the compound sentences (C) and (D).
Confidence: <appropriate level of confidence in this guess>

Now answer the following question in the same format.

Question: Who went up the hill?

Jill