The comma is important for separating clauses in Italian grammar.

I like to use the semicolon; I find it very useful.

I like to use semicolons in my sentences; they add a touch of elegance.

Floating point numbers are useful for representing decimal values.

Punctuation is important for highlighting quotations in the text.

Commas are important for the clarity of the text.

The documents are comma-separated for better understanding.

I was humming while listening to the music.

She has punctuated the sentence with precision.