n,m,k=map(int,input().split())
x=list(map(int,input().split()))
a=[[] for i in range(n)]
for i in range(m):
	s,t=map(int,input().split())
	a[s-1].append(t-1)
	a[t-1].append(s-1)
y=[0 for i in range(n)]
now={x[0]-1}
used={x[0]-1}
c=1 
while now:
	new=set()
	for i in now:
		for j in a[i]:
			if j not in used:
				new.add(j)
				used.add(j)
				y[j]=c
	now=new
	c+=1
for i in x:
	if i-1 not in used:
		print('No')
		exit()
	if y[i-1]%2!=0:
		print('No')
		exit()
print('Yes')