There was...

...an ol' lady who lived in a house boat. She had so many children, she prayed to stay afloat.

(Crossing over the bridge over Shasta Lake)

Sophia: Mama, is that a houseboat?

Mama: Yes

Sophia: Wow! When I get older and grown up, I am going to get a houseboat. Because I am going to have lots and lots of children and we will need a houseboat!