181 Agreement sensitive to subject type

A - feature is pervasive or obligatory2
B - feature is neither pervasive nor extremely rare7
C - feature exists, but is extremely rare4
D - attested absence of feature49
X - feature is not applicable (given the structural make-up of the variety/P/C)11
? - no information on feature is available4

Feature area:
Typical example:
birds sings vs. they sing
Example source:
Kortmann/Szmrecsanyi (2004)
Variety World Region Type Value
Id Primary text Variety Variety Type