Question: What technique was utilized by the director of Cheburashka?
Sentence (from "Roman Abelevich Kachanov"): He directed the popular series of films about Cheburashka based on the fairy tales written by Eduard Uspensky: "Gena the Crocodile", "Cheburashka", "Shapoklyak" and "Cheburashka Goes to School".
Relevant evidence: No