popularnego

In a sentence

• Czytałem książkę popularnego autora.

  I was reading a book by a popular author.

  Here, 'popularnego' is used to describe an author who is widely known and liked.

• Restauracja znajduje się w popularnego rodzaju budynku.

  The restaurant is in a type of building that is popular.

  In this example, 'popularnego' modifies 'rodzaju', indicating a category or type that is well-liked or common.

• Uczniowie uczestniczyli w konkursie popularnego tematu.

  The students participated in a competition on a popular topic.

  Here, 'popularnego' is describing 'tematu', showing that the subject of the competition is widely appreciated or talked about.