Means of milling whole cereal grains are well known and include {HEAD ~ the use} of {TAIL ~ hammer mills} and roller mills 
Means of milling whole cereal grains are well known and include { HEAD ~ the use } of { TAIL ~ hammer mills } and roller mills
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH