intersections in total ( cannot enter closed intersections). The city of Toronto has a total of intersections, with a total of roads between them.

is going to be late for school! However, this time, it's not his fault. is trying to stop him from making it on time for his test, and as such, will close downHe starts at intersection , and the school is at intersection .

For every intersection `YES`

, otherwise print `NO`

.

It is guaranteed that initially, he can visit all the intersections.

**Note that intersections are not roads.**

#### Input Specifications

The first line of input will contain the integer , and , followed by pairs of integers `a b`

, meaning that there is a bidirectional road between and .

There will then be integers , meaning that the intersection has been blocked off. Note that is not distinct.

**Queries are persistent.**

#### Output Specifications

Output `YES`

or `NO`

for each query.

#### Sample Input

```
3 3 2
1 2
2 3
1 3
2
3
```

#### Sample Output

```
YES
NO
```

## Comments