The present invention recognizes {HEAD ~ a new problem} with {TAIL ~ conventional ferrules} and conventional adapters in conventional lightboxes 
with
The present invention recognizes { HEAD ~ a new problem } with { TAIL ~ conventional ferrules } and conventional adapters in conventional lightboxes
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH