It is believed, therefore, that {TAIL ~ a method} of making {HEAD ~ a photoflash lamp} in the manner defined herein would constitute a significant advancement in the art 
It is believed , therefore , that { TAIL ~ a method } of making { HEAD ~ a photoflash lamp } in the manner defined herein would constitute a significant advancement in the art
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH