Each info object may have characteristics with attributes, {TAIL ~ texts}, or {HEAD ~ hierarchies}, and may function as a data source 
Each info object may have characteristics with attributes , { TAIL ~ texts } , or { HEAD ~ hierarchies } , and may function as a data source
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH