Write SQL query to solve given problem: What is the biggest discount among all orders for the part "burnished seashell gainsboro navajo chocolate"?. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT MAX(T1.l_discount) FROM lineitem AS T1 INNER JOIN part AS T2 ON T1.l_partkey = T2.p_partkey WHERE T2.p_name = 'burnished seashell gainsboro navajo chocolate'