{HEAD ~ The device} includes {TAIL ~ a fluid channel} having a surface and an object such as a bacterium or virus may flow through the fluid channel 
includes
{ HEAD ~ The device } includes { TAIL ~ a fluid channel } having a surface and an object such as a bacterium or virus may flow through the fluid channel
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