Simplify the following text for a Grade 10 native English-speaking person.
Original: In a general sense , painters such as Matthias GrÃ 1\/4 newald and El Greco can be called expressionist , though in practice , the term is applied mainly to 20th century works .
Simplified: In a general sense , painters such El Greco can be called expressionist , though in practice , the term is applied mainly to 20th century works .