78 Double comparatives and superlatives

A - feature is pervasive or obligatory13
B - feature is neither pervasive nor extremely rare32
C - feature exists, but is extremely rare11
D - attested absence of feature8
X - feature is not applicable (given the structural make-up of the variety/P/C)7
? - no information on feature is available5

Feature area:
Noun phrase
Typical example:
That is so much more easier to follow.
Example source:
Kortmann/Szmrecsanyi (2004)
Variety World Region Type Value
Id Primary text Variety Variety Type