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A 13 " km fissure opened in the south flank of the volcano , spreading in a few hours from 2800 " m to 1550 " m elevation and reaching the outskirts of the city of Goma , the provincial capital on the northern shore of Lake Kivu .
 Goma, Lake Kivu
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Goma, Lake Kivu