Revert "improved example"

This reverts commit 5977dcabc6d391e4379551fd9e31b0cfe09f0771.
Revert "added several intelligent examples"

This reverts commit 6f3ef5c7744269d83a4e7e2dc85b707b42dcdce7.
Revert "imported from local"

This reverts commit 44c88d91a95690ef61170e9b1723e8be0579d1e5.
Revert "Revert "imported from local""

This reverts commit 39cdb26914e4cf2f3ba193082e26d90964e0a542.