The Mississippi river is the second longest river and chief river of the second largest drainage system on the north American continent. John lived in a small island surrounded by flowing liquid H2O. He might live in island surrounded by Mississippi river.
This justifies what answer for what question? Q & A: 
John lived in a small island surrounded by flowing liquid H2O  Where might he live?
Options:
- japan
- hawaii
- mississippi river
- pacific ocean
- body of water
mississippi river