I'm having 2 tables

table Items Table (this table holds all items I'm having)

```
itemId
---------
Item1
Item2
Item3
Item4
Item5

table 2 users_item relation 
UserId  || ItemId
1  || Item1
1  || Item2

```

userId one has stored 2 items Item1,Item2.
Now I want to write a query on table1 (Items table) so that it displays all items which user1 has NOT chosen.