Long-distance running only the placing is of importance. Other less popular variants such as fell running, trail running, mountain running and tower running combine the challenge of distance with a significant incline or change of elevation as part of the course. Multisport races frequently include endurance running. Triathlon, as defined by the International Triathlon Union, may feature running sections ranging from five kilometres (3.1 mi) to the marathon distance (42.195 kilometres, or 26 miles and 385 yards), depending on the race type. The related sport of duathlon is a combination of cycling and distance running. Previous versions of the modern pentathlon incorporated
Nanette: An Aside Singer's Romance", though with a different stance. It was the first instance of the opera singer in her fiction. It was also partly based on Cather's life, as she had just written a letter to a friend about how marriage would force her to relinquish her art. Nanette: An Aside "Nanette: An Aside" is a short story by Willa Cather. It was first published in "Courier" on 31 July 1897 and one month later in "Home Monthly". As they are soon to leave America, Nanette tells Madame Traduttori she does not want to leave because she has fallen in love