With demons represented by priests wearing fearsome masks, onlookers throw beans to drive them away while shouting,  Demons out, good fortune in!  
Attendees throw beans to drive the demons away.  
mnli hypothesis: Attendees throw beans to drive the demons away.   premise: With demons represented by priests wearing fearsome masks, onlookers throw beans to drive them away while shouting,  Demons out, good fortune in!  