Table: performers_info
Columns: performer
performances
category
first_performance
last_performance

Question: when was the last performance of the first performance on 11/15/1909
SQL: SELECT "last_performance" FROM performers_info WHERE "first_performance" = '11/15/1909'

Question: how many first performances where performer is wilfred engelman category:articles with hcards
SQL: SELECT COUNT("first_performance") FROM performers_info WHERE "performer" = 'Wilfred Engelman Category:Articles with hCards'

Question: who was the performer that did last performance on 04/08/1963
SQL: SELECT "performer" FROM performers_info WHERE "last_performance" = '04/08/1963'

Question: what is the first performance of the last performance on 03/29/1957
SQL: SELECT "first_performance" FROM performers_info WHERE "last_performance" = '03/29/1957'

Question: what is the last performance of leon varkas category:articles with hcards
SQL: SELECT "last_performance" FROM performers_info WHERE "performer" = 'Leon Varkas Category:Articles with hCards'