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A second rocket landed in farmlands and the other hit a house inside the refugee camp , but without causing further casualties , Palestinian security sources said .
 farmlands: place; rocket: instrument
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: attack 
  Option: victim, attacker, place, target, instrument 
Text: {0} 
Answer:
 farmlands: place; rocket: instrument