how to create a sentence sql of this form?

how to create a sentence sql of this form?

I have the following table called comments, which is created the following
manner
coment_id
from
to
coment
which is shown in a simple sql statement this manner
to : richard
coment: hi richard
from : alan
to : richard
coment: hey man answerme
from : alan
to : richard
coment: hey what happen to you?
from : alan
and I want to be shown in this way
to : richard
coment: hi richard
from : alan
coment: hey man answerme
from : alan
coment: hey what happen to you?
from : alan
as would the sentence'' to achieve that outcome?