abstract
alternate
background
barbed
barrier
black
captive
chain
charm
close
coerce
constrain
cutout
disallow
enclosure
fence
forbid
forbidden
force
guard
interlace
interweave
isolated
line
link
metal
preclude
preserve
prevent
prison
prohibit
protect
railing
reeve
rusty
separated
shape
sky
steel
symmetry
thread
tiled
tiles
wire