slate [Noun] + roof [Noun]

Strength Strength Dispersion
A:
5
CHISQ:
15.82
AWT:
14,953,372
TTEST:
1.78
G2:
11.42
FAWT:
3.64
MI:
2.31
LOGLOG:
5.36
JD:
0.56
MI3:
6.95
DICE:
0.18
RANGE: