Furthermore, {HEAD ~ the button} 5 has {TAIL ~ an improved ergonomic design} which is less prone to damage by external forces 
has
Furthermore , { HEAD ~ the button } 5 has { TAIL ~ an improved ergonomic design } which is less prone to damage by external forces
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH