Rebol Programming/datatypes

DATATYPES is a block of value:

[
end! 
unset! 
error! 
datatype! 
context! 
native! 
action! 
routine! 
op! 
function! 
object! 
struct! 
library! 
port! 
any-type! 
any-word! 
any-function! 
number! 
series! 
any-string! 
any-block! 
symbol! 
word! 
set-word! 
get-word! 
lit-word! 
refinement! 
none! 
logic! 
integer! 
decimal! 
money! 
time! 
date! 
char! 
pair! 
event! 
tuple! 
bitset! 
string! 
issue! 
binary! 
file! 
email! 
url! 
tag! 
image! 
block! 
paren!
path! 
set-path!
lit-path! 
hash! 
list!
]