{TAIL ~ The guidance information} includes an attribute of {HEAD ~ the extracted node} and an attribute of the connection link 
{ TAIL ~ The guidance information } includes an attribute of { HEAD ~ the extracted node } and an attribute of the connection link
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH