A child that is dressed as Spiderman is ringing the doorbell .
There is a better than even chance that a boy dressed as Spiderman is going to a themed birthday party .
There is a better than even chance that a boy dressed as Spiderman is going to a themed birthday party .
It is impossible that a boy dressed as Spiderman is going to a themed birthday party .
A boy dressed as Spiderman is going to a themed birthday party .