drainage [Noun] + natural [Adjective]

Strength Strength Dispersion
A:
11
CHISQ:
24.28
AWT:
11,890,576
TTEST:
2.48
G2:
16.67
FAWT:
4.57
MI:
1.98
LOGLOG:
6.85
JD:
0.68
MI3:
8.9
DICE:
0.15
RANGE: