Another way to describe my problem

Input paragraph (that I will select):
=====================
n. string1 stringA string2 stringB

Result (that I want the selected paragraph to be converted to)
=============

MYTEXT1 1. MYTEXT2 string1 string2 MYTEXT3 stringA stringB MYTEXT4 stringA stringB

where n is nay integer
MYTEXT are hardcoded sentences or paragraph

string1 & string2 are normal (such as un-bold) paragraph
stringA & stringB are bold or formatted paragraph in the input but presented unformatted in the output result

Thanks!