There is no official red-light district, although the definition of the boundaries has varied according to both the source and the time period.

This causes difficulties in simple and efficient boundary definition.

This boundary definition can be ambiguous as the river changes course and some of the river banks have been modified.

No definition of the boundaries of the Devon stannaries is known, if indeed one ever existed.

The efficiency of any system depends on the definition of the boundaries of the system.

Today, definitions of the boundaries of Fairmount vary.

Namely, stones inside friendly territory, which are irrelevant to boundary definition, are removed before counting territory.

Disagreements concerning the exact boundaries are to be expected, however the exact boundary definitions are not necessary to adequately define the state's regions.

This was based on Canada's assertion that that location was more than ten marine leagues from the sea, which was part of the 1825 boundary definition.

The Penn Mortgage program is available only for homes purchased within Penn's definition of the boundaries of University City.