It is probably the case that John discarded the milk. We doubt that Greg is a rhino. It is impossible that Bernhard is white. We doubt that if Greg is a rhino, and John discarded the milk, then Yann got the milk there. It is likely that if Greg is a rhino, or John discarded the milk, then Bill went to the garden. We doubt that if Greg is a rhino, and John discarded the milk, then Sandra left the football.
We doubt that john discarded the milk, or Bill went to the garden.
We believe that john discarded the milk, or Bill went to the garden.
We doubt that john discarded the milk, or Bill went to the garden.
John discarded the milk, or Bill went to the garden.