code: function encounter(mood) {
  
    //Sentence 1: The meeting
    const familiar_people = wordLib.getWords("familiar_people");
    const strange_people = wordLib.getWords("strange_people");
    const locations = wordLib.getWords("locations");
  
    const person = nu.chooseFrom(familiar_people.concat(strange_people));
    let location = nu.chooseFrom(wordLib.getWords("locations"));
    const preposition = location[0];
    location = location[1];
  
    const s1 = `You may meet ${person} ${preposition} ${location}.`;
  
    // Sentence 2: The discussion
    let discussions = wordLib.getWords("neutral_discussions");
    discussions.concat(wordLib.getWords(mood + "_discussions"));
    const feeling_nouns = wordLib.getWords(mood + "_feeling_nouns");
    const emotive_nouns = wordLib.getWords(mood + "_emotive_nouns");
    const conversation_topics = wordLib.getWords("conversation_topics");
  
    const discussion = nu.chooseFrom(discussions);
    const rnum = Math.floor(Math.random() * 10);
  
    let feeling;
  
    if (rnum <- 5) {
      feeling = nu.chooseFrom(feeling_nouns);
      feeling = "feelings of " + feeling;
    } else {
      feeling = nu.chooseFrom(emotive_nouns);
    }
    const topic = nu.chooseFrom(conversation_topics);
  
    let s2 = `${nu.an(discussion)} about ${topic} may lead to ${feeling}.`;
    s2 = nu.sentenceCase(s2);
  
    return `${s1} ${s2}`;
  }
docs: Generate a few sentences about a meeting with another person.
  @param mood