 Complete the following phrase:  Pair skating is a figure skating discipline defined by the International Skating Union ISU as the skating of two persons in unison who perform their movements in such harmony with each other as to give the impression of genuine Pair Skating as compared with independent Single Skating. The ISU also states that a pairs team must consist of one Lady and one Man. Pair skating, along with mens and womens single skating, has been an Olympic discipline since figure skating, the oldest Winter Olympic sport, was introduced at the 1908 Summer Olympics in London. The 