Fake prehistoric rock art of a caveman with a shopping trolley has been hung on the walls of the British Museum.
Nobody knows who painted the fake cave art
( z1 know :ARG0 ( z2 nobody ) :ARG1 ( z3 person :ARG0-of ( z4 paint :ARG1 ( z5 art :ARG1-of ( z6 fake ) :mod ( z7 cave ) ) ) ) )