{TAIL ~ The vector} is {HEAD ~ preferably bacteria}, more preferably non tumor inducing Agrobacterium 
{ TAIL ~ The vector } is { HEAD ~ preferably bacteria } , more preferably non tumor inducing Agrobacterium
TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH