understanding
/
skin(s)
/
place(s)
/
form(s)
/
_
/
.
human computer interaction is a symmetric relation
mouse site(s)
/
infosphere(s)
[root]
[]
[vision]
(
-
/
*
)
[image]
/
/
[x]
show
[
<
|
%
|
>
]
map
[fx]
[
<
|
~
|
>
]
[video]
[
+
/
-
]
[game]
[?]
[create]
[
<
|
$
|
>
][
iv
]
bk
[
#
]
[media]
[
a
/
r
/
t
]
@
/
tv
/
&
[
tube
]
_
/
..
/
...
*
/ (
b
w
) [
r
g
b
] (
s
g
) /
[-]
