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To give a few examples , there were persistent reports when the first Western travelers went to southeast Asia , back to the time of Sir Francis Drake in the 1500s , of spectacular scenes along riverbanks , where thousands upon thousands of fireflies in the trees would all light up and go off simultaneously . Chapters 8 '' Meaning in dictionaries '' and 9 '' Beyond definition '' delve into the nuts and bolts of dictionary composition : what to define , arrangement of material ( lumping and splitting , ordering of senses historically or by frequency ) , writing definitions , including sense relations ( synonyms , hyponyms , etc. ) , representation of spelling and pronunciation , and indicating inflection , word class , and usage . The submitting agency must schedule payment of the certificates of settlement issued by GAO . " In almost all instances , the interchange of ideas and sometimes of software developments between the vendors and the centers has been advantageous to computer users . The stools become large and hard , and attempted passage may result in pain and avoidance of the toilet , which make the situation worse .