In connection with a particular parcel of suburban property, in 1963 underground telephone lines were installed outside the easement area. These lines were intended to remain in place for 100 years. However, in 1988 - after a mere 25 years - the landowner wanted the underground telephone lines removed becuase in his opinion they constituted a continuing nuisance and trespass. Evaluating this situation as a neutral party, do the buried telephone lines need to be removed?