dipping fabric samples in the 10% acid solution using {TAIL ~ a glass tray} to contain {HEAD ~ the acid}, 
dipping fabric samples in the 10 % acid solution using { TAIL ~ a glass tray } to contain { HEAD ~ the acid } ,
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH