["Ag-Se","As-Cd","As-Ga","As-In","As-Zn","Bi-Se","Bi-Te","Cd-Hg","Cd-Mn","Cd-P","Cd-S","Cd-Sb","Cd-Te","Cu-Se","Cu-Te","Ga-In","Ga-Sb","Ge-Te","Hg-Te","In-P","In-Sb","In-Te","Mn-Te","Pb-S","Pb-Se","Pb-Sn","Pb-Te","P-Zn","Sb-Se","Sb-Zn","Se-Sn","Se-Te","Sn-Te","As-Ga-In","As-In-P","Bi-Ge-Te","Bi-Pb-Te","Bi-Se-Te","Bi-Sn-Te","Cd-Hg-Te","Cd-Mn-Te","Ge-Sb-Te","Pb-Se-Te","Pb-Sn-Te"]