"content":"<p>Table: <code>ActorDirector</code></p>\n\n<pre>\n+-------------+---------+\n| Column Name | Type |\n+-------------+---------+\n| actor_id | int |\n| director_id | int |\n| timestamp | int |\n+-------------+---------+\ntimestamp is the primary key column for this table.\n</pre>\n\n<p> </p>\n\n<p>Write a SQL query for a report that provides the pairs <code>(actor_id, director_id)</code> where the actor has cooperated with the director at least three times.</p>\n\n<p>Return the result table in <strong>any order</strong>.</p>\n\n<p>The query result format is in the following example.</p>\n\n<p> </p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> \nActorDirector table:\n+-------------+-------------+-------------+\n| actor_id | director_id | timestamp |\n+-------------+-------------+-------------+\n| 1 | 1 | 0 |\n| 1 | 1 | 1 |\n| 1 | 1 | 2 |\n| 1 | 2 | 3 |\n| 1 | 2 | 4 |\n| 2 | 1 | 5 |\n| 2 | 1 | 6 |\n+-------------+-------------+-------------+\n<strong>Output:</strong> \n+-------------+-------------+\n| actor_id | director_id |\n+-------------+-------------+\n| 1 | 1 |\n+-------------+-------------+\n<strong>Explanation:</strong> The only pair is (1, 1) where they cooperated exactly 3 times.\n</pre>\n",