Last night in Myauk- Oo, Rakhine state, there was a huge fire that swallowed the whole refugee camp. More than 600 residences were turned into ashes. 

The arson was committed by Junta terrorists #WhatsHapppeningInMyanmar #Mar18Coup @UN_HRC @UNGeneva @Juarawee @GCR2P @UN @CIJ_ICJ https://t.co/TsLWhBByjP
United Nations Peacekeeping Force's Office @ SOC
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MEI CHIN
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['committed', 'committed', 'refugee', 'terrorist', 'terrorist', 'arson', 'terrorist', 'ash', 'arson', 'junta', 'terrorist', 'fire', 'arson', 'terrorist', 'terrorist']
last night state there huge fire that whole refugee camp more than were turned into ashes arson junta #mar  coup @un hrc @ungeneva @juarawee @gcr p @cij icj
last night myauk oo rakhine state huge fire swallowed whole refugee camp 600 residences turned ashes arson committed junta terrorists whatshapppeninginmyanmar mar18coup
  [
    {"relatedness": True, "type": "infrastructure", "explanation": "refugee camp facilities were destroyed by fire"},
    {"relatedness": True, "type": "violence", "explanation": "arson attack committed by military terrorists"},
    {"relatedness": False, "type": "none", "explanation": "This is not related to maintenance report feedback for public flat house"}]

The Twitter post mentions a fire that destroyed a refugee camp in Myanmar, and it is related to the type of infrastructure and violence. Therefore, the answer is {{"relatedness": True, "type": "infrastructure", "explanation": "refugee camp facilities were destroyed by fire"}, {"relatedness": True, "type": "violence", "explanation": "arson attack committed by military terrorists"}}.