Add punctuation: Seat shell of doublewalled textured polypropylene LuPo for comfortable sitting with aircushion effect
A: Seat shell of double-walled textured polypropylene (LuPo) for comfortable sitting with air-cushion effect.

Add punctuation: Continued antigen exposure along with unregulated inflammation results in disease although the exact mechanisms and underlying factors remain unknown
A: Continued antigen exposure, along with unregulated inflammation, results in disease, although the exact mechanisms and underlying factors remain unknown.

Add punctuation: Registration 8 December 2004 1154
A:
Registration 8 December 2004 11:54