{HEAD ~ The present invention} includes {TAIL ~ the discovery} that BeTe is chemically active in air and tends to react with oxygen to form an amorphous BeO layer 
includes
{ HEAD ~ The present invention } includes { TAIL ~ the discovery } that BeTe is chemically active in air and tends to react with oxygen to form an amorphous BeO layer
HEAD 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 OTH OTH OTH OTH OTH OTH OTH