3SN2|1|B|A|15	sO4'3	3SN2|1|B|G|16	
3SN2|1|B|G|16	s3O4'	3SN2|1|B|A|15	
3SN2|1|B|U|17	sO4'5	3SN2|1|B|G|18	
3SN2|1|B|G|18	s5O4'	3SN2|1|B|U|17