{HEAD ~ These compositions} contain {TAIL ~ yeast cells} obtainable by growth in electromagnetic fields with specific frequencies and field strengths 
contain
{ HEAD ~ These compositions } contain { TAIL ~ yeast cells } obtainable by growth in electromagnetic fields with specific frequencies and field strengths
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH