Table: irish_badminton_champs
Columns: year
men_s_singles
men_s_doubles
women_s_doubles
mixed_doubles

Question: What were the names of the mixed doubles pair for the year that Ralph Nichols played in the men's singles match?
SQL: SELECT "mixed_doubles" FROM irish_badminton_champs WHERE "men_s_singles" = 'ralph nichols'

Question: Who were the women's doubles pair in 1952?
SQL: SELECT "women_s_doubles" FROM irish_badminton_champs WHERE "year" = '1952'