. "0"^^ . . "op art"@en-us . . "a style of abstractionism popular in the 1960s; produces dramatic visual effects with colors and contrasts that are difficult for the eye to resolve"@en-us . "103702559"@en-us . "103057038"@en-us . . "103847622"^^ . . . . . . "op art"^^ . "0.375"^^ . "03847622-n"^^ .