Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_5887 ( "Year" real, "Men's singles" text, "Women's singles" text, "Men's doubles" text, "Women's doubles" text, "Mixed doubles" text )

### Question ###
Men's singles of kilian pfister, and a Women's doubles of astrid eidenbenz claudia jehle has what average year?

### Accurate SQL ###

SELECT AVG("Year") FROM table_5887 WHERE "Men's singles" = 'kilian pfister' AND "Women's doubles" = 'astrid eidenbenz claudia jehle'