Antofagasta - Univ de Chile

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{"lg_-1":[6,2,8,16],"lg_-1_6":[3,0,3,6],"lg_122":[6,2,8,16],"lg_122_6":[3,null,3,6]}

{"lg_-1":[1,4,2,7],"lg_-1_6":[1,4,1,6],"lg_122":[1,4,2,7],"lg_122_6":[1,4,1,6]}

{"lg_-1":[1,0,7,8],"lg_-1_6":[0,0,6,6],"lg_122":[1,null,7,8],"lg_122_6":[null,null,6,6]}