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_46600 ( "Tournament" text, "1983" text, "1984" text, "1985" text, "1986" text, "1987" text, "1988" text, "1989" text, "1990" text, "Career SR" text )

### Question ###
What was the 1987 result for the tournament with 1986 result of 3R and 1989 of A?

### Accurate SQL ###

SELECT "1987" FROM table_46600 WHERE "1989" = 'a' AND "1986" = '3r'