Grandfather Frog scratched his head thoughtfully and looked a long time at the dam of logs and sticks and mud .<br>Then his big mouth widened in a big smile .<br>`` Why , that is very simple , '' said he , `` Jerry Muskrat will make a big hole through the dam near the bottom , because he knows how , and the rest of us will keep watch to see that no harm comes near . ''
Harm will be prevented from approaching Jerry Muskrat.
( z1 prevent :ARG1 ( z2 harm :ARG1-of ( z3 approach :ARG2 ( z4 person :name ( z5 name :op "Jerry" :op "Muskrat" ) ) ) ) )