Harmanli Massacre
{'<entity_0>': 'Russo-Turkish War of 1877–78', '<entity_1>': 'Harmanli Massacre', '<entity_2>': 'battle'}
[['Harmanli Massacre', 'instance of', 'battle'], ['Harmanli Massacre', 'part of', 'Russo-Turkish War of 1877–78']]
<entity_1> refers to the <entity_2> between Russian and Turkish forces and the ensuing mass death of Muslim civilians near Harmanli in early 1878, during the <entity_0>.
['battle']