Deep and wide… deep and wide 
there’s a fountain flowing deep and wide… 
Deep and wide… deep and wide 
there’s a fountain flowing deep and wide… 

Hmm and wide…hmm and wide 
there’s a fountain flowing hmm and wide… 
Hmm and wide… hmm and wide 
there’s a fountain flowing hmm and wide…

(continue replacing one word at a time with humming 
until you are only humming for the last verse)