The phosphor 9, wherein the element {HEAD ~ M} is {TAIL ~ at least one kind} of element selected from the group consisting of Mg, Ca, Sr, Ba, and Zn, the element 
is
The phosphor 9 , wherein the element { HEAD ~ M } is { TAIL ~ at least one kind } of element selected from the group consisting of Mg , Ca , Sr , Ba , and Zn , the element
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL 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 OTH OTH OTH