 Complete the following phrase:  Um competed at the 2014 Winter Olympics for South Korea. She teamed with Kim Ji-sun, Lee Seul-bee, Shin Mi-sung and Gim Un-chi in the womens tournament. She began the tournament as the alternate, but played lead in five of the teams last six games, as the South Korean team went 36 to finish in a tie for 8th. She curled 85, which was 6th out of the 10 leads. Later that year, Um made her World Curling Championships at the 2014 World Womens Curling Championship. The team would have great success, finishing the round robin with a 83 record, tied for fourth. The team would win the tiebreaker 75 over Swedens Margaretha Sigfridsson to qualify for the playoffs. After winning the 3 vs. 4 page playoff game 95 over Russias Anna Sidorova, the team would lose the semi-final 72 to Switzerlands Binia Feltscher and then lost the bronze medal game 76 to the Russians, settling for fourth place. The following season, the team finished runner-up at the 2015 Pacific-Asia Curling Championships to Japans Satsuki Fujisawa. The team played in the 