CREATE TABLE table_51534 ("Game" FLOAT, "Date" CLOB, "Team" CLOB, "Score" CLOB, "High points" CLOB, "High rebounds" CLOB, "High assists" CLOB, "Location Attendance" CLOB, "Record" CLOB)

Who had the highest rebounds of the game with A. Johnson (6) as the highest assist?
SELECT "High rebounds" FROM table_51534 WHERE "High assists" = 'a. johnson (6)'
SELECT "High rebounds" FROM "table_51534" WHERE "High assists" = 'a. johnson (6)'