Conversation so far:
who painted the pictures mona lisa and the last supper
Leonardo da Vinci was and is renowned primarily as a painter. Two of his works, the Mona Lisa and The Last Supper, are his most famous.
who painted the scream
the scream was painted by Edvard Munch
what was edvard munch's inspiration for the scream
The Scream was a result of the anxiety and fear Edvard Munch felt on a day while walking with two friends.

Question: what happened
Self-contained rewrite: what happened when edvard munch was walking with two friends