August Challenge - SPELLBOB Whats wrong in my code?

    #include "iostream"
    #include "string.h"
    using namespace std;

    int main() {
            string s1, s2;
            int t;
            cin >> t;
            while(t--) {
                cin >> s1 >> s2;
                    if(s1[0] == 'b' || s2[0] == 'b') {
                            if(s1[1] == 'b' || s2[1] == 'b') {
                                    if(s1[2] == 'o' || s2[2] == 'o')
                                        cout << "yes" << endl;
                                    else
                                        cout << "no" << endl;

                            }

                            else if(s1[1] == 'o' || s2[1] == 'o') {
                                if(s1[2] == 'b' || s2[2] == 'b')
                                    cout << "yes" << endl;
                                else
                                    cout << "no" << endl;


                            }
                            else
                                cout << "no" << endl;


                        }


                    else if(s1[0] == 'o' || s2[0] == 'o') {
                            if(s1[1] == 'b' || s2[1] == 'b') {
                                if(s1[2] == 'b' || s2[2] == 'b')
                                    cout << "yes" << endl;
                                else
                                    cout << "no" << endl;

                            }
                            else
                                cout << "no" << endl;


                        }

                    else
                        cout << "no" << endl;
                }
                return 0;

        }