In this task, you're given a passage, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.

Passage: In the 1998 championship, led by Mayo-born manager John O'Mahony, Galway won their first round encounter with Mayo, before overcoming Leitrim by 1-16 to 0-05 in the semi-final. The first final ended as a draw, 11 points apiece with Roscommon, but Galway won the replay in Hyde Park. In the semis, Galway came up against Ulster champions Derry, and won by 0-16 to 1-09. In the final the team faced a Kildare team that had just beaten the previous year's champions, Kerry, and were coached by 8 time All-Ireland winning manager Mick O'Dwyer. Galway went into the final as underdogs, but outstanding performances from Ja Fallon and Michael Donnellan in that match, along with a superbly taken goal from a young Padraig Joyce, helped Galway overcome the Lilywhites by 1-14 to 1-10. Captain Ray Silke lifted the Sam Maguire, and Galway became the first Connacht team in 32 years to win an All-Ireland title.
 Link Information: The championship began on 3 May 1998 Question: On what date did the 1998 championship led by John O'Mahony begin?
Answer: 3 May 1998