#include<bits/stdc++.h>
using namespace std;
using ll = long long;

using dat = array<array<int,2>,2>;

int main(){
    
    int n;
    cin>>n;
    vector<int> p(n);
    for(int i = 0;i<n;i++){
        string now;
        cin>>now;
        if(now=="Yes") p[i] = 1;
        else p[i] = 0;
    }

    vector<dat> now(n);
    for(int i = 0;i<n;i++){
        dat use = {};
        if(p[i]==1){
            use[0][0] = 1;
            use[1][1] = 1;
        }else{
            use[0][1] = 1;
            use[1][0] = 1;
        }
        now[i] = use;
    }
    dat e= {};
    e[0][0] = e[1][1] = 1;

    for(int i = 0;i<n;i++){
        if(p[i]==0){
            if(e[0][1]) cout<<"Yes\n";
            else cout<<"No\n";
        }else{
            if(e[0][0]) cout<<"Yes\n";
            else cout<<"No\n";
        }
        dat res = {};
        for(int j = 0;j<2;j++){
            for(int k = 0;k<2;k++){
                for(int l = 0;l<2;l++){
                    res[j][k] |= now[i][j][l] & e[l][k];
                }
            }
        }
        e = res;
    }
    
}