CREATE TABLE table_56195 ("Game" FLOAT, "Date" CLOB, "Team" CLOB, "Score" CLOB, "High points" CLOB, "High rebounds" CLOB, "High assists" CLOB, "Location Attendance" CLOB, "Series" CLOB)

What is the location attendance of the game with A. Horford (10) as the highest rebounds and J. Johnson (21) as the highest points?
SELECT "Location Attendance" FROM table_56195 WHERE "High rebounds" = 'a. horford (10)' AND "High points" = 'j. johnson (21)'
SELECT "Location Attendance" FROM "table_56195" WHERE "High points" = 'j. johnson (21)' AND "High rebounds" = 'a. horford (10)'