Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: (CNN) -- Venezuelan national guard troops have rescued some inmates from a prison where a standoff between prisoners and authorities continued Tuesday, but hundreds more remain inside. Armed inmates inside the Rodeo II prison in the northern state of Miranda, east of Caracas, have rejected government calls to disarm since last week. According to the government, a group of about 50 inmates out of 1,000 is behind the resistance. Authorities had already raided another prison, Rodeo I, and seized a number of weapons, drugs and cell phones. Two troops and one inmate were killed in that raid, officials said. On Monday night, a national guard contingent rescued 36 inmates from the "mafias" that have control of Rodeo II, the state-run AVN news agency reported. Eleven were injured in the operation.A standoff over weapons continues to brew at the Rodeo II prisonA human rights commission has repeatedly called for reforms at prisonsA video allegedly shows a scene from inside one of the prisons 
 Question:Conditions in _ prisons have been the subject of concern for human rights organizations for some time.

Venezuelan