مُسْلِمُونَ becomes مُسْلِمُو الْمَدِينَةِ.
Translation: Muslims → the Muslims of the city.
The sound masculine plural loses its final nūn in iḍāfah, while the nominative wāw stays. مُسْلِمُو may function as a nominative subject and mudāf; الْمَدِينَةِ is a genitive mudāf ilayh.
This additional teaching example mirrors the source’s Muslimū Miṣr construction while making the complement’s genitive case unambiguous.