! Don't use $example below: it won't pass help-lint.
{ $code
"USING: math.parser threads ;"
- "[ 10 iota [ number>string write nl yield ] each ] \"test\" spawn drop"
+ "[ 10 <iota> [ number>string write nl yield ] each ] \"test\" spawn drop"
"10 [ yield ] times"
"0"
"1"