Knee-high to a grasshopper and Knee-high to a duck

Knee-high to a duck and knee-high to a grasshopper are semantically related. In some cases you can replace phrase "Knee-high to a duck" with "Knee-high to a grasshopper", this phrases are similar.

Knee-high to a grasshopper and knee-high to a duck are semantically related. Sometimes you can replace phrase "Knee-high to a grasshopper" with "Knee-high to a duck", this phrases are similar.