Complex sentence: Many of them incorporated symbols of industry and agriculture, the hammer and sickle, a raising sun and the red star of communism, and it was not uncommon to show landscapes and weapons, as can be seen in the examples below.
Split into simpler sentences: Many of them incorporated symbols of industry and agriculture, the hammer and sickle, a raising sun and the red star of communism. It was not uncommon to show landscapes and weapons, as can be seen in the examples below.