import sys
readline=sys.stdin.readline

N=int(readline())
se=set()
base=1000
mod=(1<<121)-1
for n in range(N):
    S=readline().rstrip()
    le=len(S)
    pow_base=[1]
    for i in range(le-1):
        pow_base.append(pow_base[-1]*base%mod)
    h=sum(ord(S[i])*pow_base[i] for i in range(le))%mod
    if h in se:
        ans="Yes"
    else:
        ans="No"
    print(ans)
    se.add(h)
    for i in range(le-1):
        se.add((h-ord(S[i])*pow_base[i]-ord(S[i+1])*pow_base[i+1]+ord(S[i])*pow_base[i+1]+ord(S[i+1])*pow_base[i])%mod)