Line-Breaking Around clearpage

AFAIK, line-breaking around begin{document}, end{document}, or begin{section} doesn’t change the results as follows.

documentclass{article}
                        % INSERTING OR DELETING THIS LINE DOESN'T AFFECT THE OUTCOME
begin{document}
                        % INSERTING OR DELETING THIS LINE DOESN'T AFFECT THE OUTCOME
Hello, world!
                        % INSERTING OR DELETING THIS LINE DOESN'T AFFECT THE OUTCOME
end{document}

I wonder if this is the same for clearpage. I think there are seven possible spots for clearpage that seemingly produce the same output. Do they have no logical difference from one another?

Spot 1: The spot right after the first paragraph.

documentclass{article}
begin{document}
This is a sentence. This is a sentence. This is a sentence. This is a sentence. This is a sentence.clearpage

This is a sentence. This is a sentence. This is a sentence. This is a sentence. This is a sentence.
end{document}

Spot 2: The spot right below the first paragraph.

documentclass{article}
begin{document}
This is a sentence. This is a sentence. This is a sentence. This is a sentence. This is a sentence.
clearpage

This is a sentence. This is a sentence. This is a sentence. This is a sentence. This is a sentence.
end{document}

Spot 3: Two lines away from both the first and second paragraphs.

documentclass{article}
begin{document}
This is a sentence. This is a sentence. This is a sentence. This is a sentence. This is a sentence.

clearpage

This is a sentence. This is a sentence. This is a sentence. This is a sentence. This is a sentence.
end{document}

Spot 4: The spot right above the second paragraph.

documentclass{article}
begin{document}
This is a sentence. This is a sentence. This is a sentence. This is a sentence. This is a sentence.

clearpage
This is a sentence. This is a sentence. This is a sentence. This is a sentence. This is a sentence.
end{document}

Spot 5: The spot right before the second paragraph.

documentclass{article}
begin{document}
This is a sentence. This is a sentence. This is a sentence. This is a sentence. This is a sentence.

clearpage This is a sentence. This is a sentence. This is a sentence. This is a sentence. This is a sentence.
end{document}

Spot 6: In the middle of the two paragraphs with no additional line break.

documentclass{article}
begin{document}
This is a sentence. This is a sentence. This is a sentence. This is a sentence. This is a sentence.
clearpage
This is a sentence. This is a sentence. This is a sentence. This is a sentence. This is a sentence.
end{document}

Spot 7: Just at the beginning of the second paragraph with no line break.

documentclass{article}
begin{document}
This is a sentence. This is a sentence. This is a sentence. This is a sentence. This is a sentence.
clearpage This is a sentence. This is a sentence. This is a sentence. This is a sentence. This is a sentence.
end{document}

I think either Spot 1 or Spot 3 is more readable than others, and Spot 7 is the shortest code among all the candidates with the same outcome. I wonder if pursuing easy-reading (or space-saving sometimes) coding practice unexpectedly influences the results.