By Daniela Calone Montevideo, Jun 27 (EFE).- A line of eight mouths opened wide as if they were screaming, each with one of the letters of the word S-I-L-E-N-C-I-O (SILENCE) inside, is one of the works included in an art exhibit that marks the 50-year anniversary of the June 27, 1973, military coup in Uruguay. …