<!ENTITY sigma              "&#x3C3;">
<!ENTITY omicron_with_tonos "&#x3CC;">
<!ENTITY phi                "&#x3C6;">
<!ENTITY omicron            "&#x3BF;">
<!ENTITY final_sigma        "&#x3C2;">
<!ENTITY epsilon_with_tonos "&#x3AD;">
<!ENTITY alpha              "&#x3B1;">
<!ENTITY upsilon            "&#x3C5;">
<!ENTITY tau                "&#x3C4;">
<!ENTITY nu                 "&#x3BD;">
<!ENTITY gamma              "&#x3B3;">
<!ENTITY iota               "&#x3B9;">
<!ENTITY omega_with_tonos   "&#x3CE;">
<!ENTITY kappa              "&#x3BA;">
<!ENTITY epsilon            "&#x3B5;">