“When the doomsday came, the oxygen content in the air rose to 70%. Insects mutated, and fires broke out frequently.” “Everyone had to rely on oxygen cylinders to live.” “Grandma and Uncle’s family took away all our oxygen cylinders when they saw that resources were limited.” “Our house was burned to the ground because the piled-up trash was ignited by a small spark.” “Although my parents and I narrowly escaped

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