Chances are slight that Daniel dropped the milk. It is highly unlikely that John went to the kitchen. There is a better than even chance that Lily is a frog. It is probable that if John went to the kitchen, or Daniel dropped the milk, then Bernhard is a swan. It is unlikely that if John went to the kitchen, or Lily is a frog, then Sumit is thirsty. It is certain that if John went to the kitchen, and Lily is a frog, then Sandra took the apple.
It is unlikely that either Sumit is thirsty, or Daniel dropped the milk.
It is unlikely that either Sumit is thirsty, or Daniel dropped the milk.
It is probable that either Sumit is thirsty, or Daniel dropped the milk.
Either Sumit is thirsty, or Daniel dropped the milk.