When collapsing the umbrella, the shaft is stored in {HEAD ~ the fixing portion} to prevent {TAIL ~ the shaft} from damages and deformations by offering the shaft with appropriate protection 
to prevent
When collapsing the umbrella , the shaft is stored in { HEAD ~ the fixing portion } to prevent { TAIL ~ the shaft } from damages and deformations by offering the shaft with appropriate protection
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH