Problem:jewels and stones i am not getting what is the mistake?

general
1

n=int(input())

for i in range(n):
jewel=input()
stone=input()
ans=0
if len(stone)>=len(jewel):
for j in jewel:
if j in stone:
ans+=1
stone.replace(j,’ ‘)
else:
for j in stone:
if j in jewel:
ans+=1
jewel.replace(j,’ ')

print(ans)