Guards may stand_by with flamethrowers.Logical formLearned from1 sentences. Hundreds of police may stand_by with a (water canon).Logical formLearned from1 sentences. (Emergency physicians) may stand_by in a tent.Logical formLearned from1 sentences. Some evacuees may stand_by in frustration.Logical formLearned from1 sentences. Special squads of troops may stand_by in case of violence.Logical formLearned from1 sentences. Some dozen may stand_by in case of (mass arrests).Logical formLearned from1 sentences. A handful of protesters may stand_by in silence.Logical formLearned from1 sentences. Snipers may stand_by a vigil.Logical formLearned from1 sentences. Armed police may stand_by without interfering.Logical formLearned from1 sentences. A veterinarian may stand_by with an (operating room).Logical formLearned from1 sentences. Some others may stand_by during beatings.Logical formLearned from1 sentences. A townswoman may stand_by a female.Logical formLearned from1 sentences. The world may stand_by during a genocide.Logical formLearned from1 sentences. Countries may stand_by during a genocide.Logical formLearned from1 sentences. A legislature may stand_by in a silence.Logical formLearned from1 sentences.