drainage [Noun] + provide [Verb]

Strength Strength Dispersion
A:
11
CHISQ:
12.84
AWT:
6,739,459
TTEST:
2.13
G2:
10.72
FAWT:
8.07
MI:
1.49
LOGLOG:
5.15
JD:
0.68
MI3:
8.41
DICE:
0.04
RANGE: