impenetrable [Adjective] + fence [Noun]

Strength Strength Dispersion
A:
4
CHISQ:
405.02
AWT:
17,955,704
TTEST:
1.98
G2:
38.71
FAWT:
3.03
MI:
6.69
LOGLOG:
13.38
JD:
0.51
MI3:
10.69
DICE:
0.34
RANGE: