A man dressed as an angel balances a woman dressed as an angel on his thighs while she hands out papers to people passing on the sidewalk.
A man and woman dressed as devils are riding bicycles.
A man and a women dressed as an angel look different than a man and women dressed as a devil.
The man and woman can't both be dressed as angels and devils.
Devils and angels are different beings.  A person cannot ride a bike and balance someone on his thighs at the same time.