Under the 1997 Hawaii law regarding 'de minimus' structure position discrepancies' in residential property, which of the following would NOT be considered an encroachment?
1) A Swimming pool that was built 1 foot into the neighbor's property.
2) The corner of a roof that overhangs 9 inches onto a neighbor's yard.
3) A chain link fence that crosses the next door back yard four inches beyond the boundary.
4) A driveway that overruns the county right of way by 2 inches.