A man is walking his pet cat in the street .
A man and his cat are walking down the street .
A man is walking his pet cat in the street.
A man and his cat are walking down the street.
"A man and his cat" is the same as "his pet cat". They are both talking about walking down the street.
`` A man and his cat '' is the same as `` his pet cat '' . They are both talking about walking down the street .