{HEAD ~ Another object} of the invention is to provide {TAIL ~ an assay vehicle} as part of a simple and inexpensive assay system that does not require a laboratory environment or equipment 
is to provide
{ HEAD ~ Another object } of the invention is to provide { TAIL ~ an assay vehicle } as part of a simple and inexpensive assay system that does not require a laboratory environment or equipment
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH