Context identification match level - 7.3

The context identification match level gives the level to which the input data can be recognized based on the context in which it appears.

This is the least accurate form of matching and is based on identifying a word as, for instance, a Thoroughfare based on it being preceded by something that could be a Premise, and followed by something that could be a Locality, the latter items being identified through a match against the reference data or the lexicon.

Match level	Description
5	delivery point (PostBox or SubBuilding).
4	premises (Premise or Building).
3	thoroughfare.
2	locality.
1	administrative area.
0	none.