Database: academic
Question: return me the authors who have cooperated both with " H. V. Jagadish " and " Divesh Srivastava " .
SQL:
SELECT t2.name FROM writes AS t4 JOIN author AS t2 ON t4.aid  =  t2.aid JOIN publication AS t7 ON t4.pid  =  t7.pid JOIN writes AS t5 ON t5.pid  =  t7.pid JOIN writes AS t6 ON t6.pid  =  t7.pid JOIN author AS t1 ON t5.aid  =  t1.aid JOIN author AS t3 ON t6.aid  =  t3.aid WHERE t1.name  =  "H. V. Jagadish" AND t3.name  =  "Divesh Srivastava";