Nevertheless, in certain cases, {HEAD ~ iron exhibits} stronger {TAIL ~ antipathogenic characteristics}, particularly antimicrobial characteristics, compared to manganese 
stronger
Nevertheless , in certain cases , { HEAD ~ iron exhibits } stronger { TAIL ~ antipathogenic characteristics } , particularly antimicrobial characteristics , compared to manganese
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH