181960
The cubism section contains works by Pablo Picasso , Mondrian , and Gris , as well as one of the most important European collections of Fernand Léger .
 Pablo Picasso, Gris, Fernand Léger
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Pablo Picasso, Gris, Fernand Léger