# Purpose: simple valid file conforming to CIF syntax

data_model

_d1 char
_d2 'model file'
_d3 "with various types of field"
_d4              # Comment
; all conforming to valid STAR/CIF syntax
  rules
;

loop_

_d5
_d6
_d7
_d8

A B C D
E F G H          # Comment within the body of a loop
I J K L