Even if {HEAD ~ the cell phone} has {TAIL ~ a video display}, the display might be too small or the achievable transmission data rate might be too low to handle useful video content 
Even if { HEAD ~ the cell phone } has { TAIL ~ a video display } , the display might be too small or the achievable transmission data rate might be too low to handle useful video content
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH