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#include <bits/stdc++.h>
#include <iostream>

//#define TEST

using namespace std;

#define FAST  ios_base::sync_with_stdio(0) ;cin.tie(0);

#define pb push_back
#define mp make_pair

#define fi(a, b) for(int i=a; i<=b; i++)
#define fj(a, b) for(int j=a; j<=b; j++)
#define fo(a, b) for(int o=a; o<=b; o++)

#define fdi(a, b) for(int i=a; i>=b; i--)
#define fdj(a, b) for(int j=a; j>=b; j--)
#define fdo(a, b) for(int o=a; o>=b; o--)

#define sz(x) (int)x.size()

#define init_v( tab, n ) fo(1, n ) tab.pb(0)

typedef long long ll;
typedef long double ld;
typedef vector <int> vi;
typedef pair <int, int> pii;
typedef vector <pii> vpii;
typedef pair <ll, ll> pll;
typedef vector <pll> vpll;
typedef vector <ll> vll;

template <typename T> ostream& operator<<( ostream& os, vector<T> v)
{
    fi(0, sz(v) - 1)   os << v[i] << " ";
    return os;
}
template <typename A, typename B> ostream& operator <<(ostream& os, pair< A, B> p)
{
    os << "(" << p.first << ", " << p.second << ")";
    return os;
}
template <typename T> ostream& operator<<( ostream& os, set<T> t)
{
    for (auto z : t)
    {
        os << z << " ";
    }
    return os;
}
template <typename T1, typename T2> ostream& operator <<(ostream& os, map< T1, T2> t)
{
    cerr << endl;
    for (auto z : t)
    {
        os << "\t" << z.first << " -> " << z.second << endl;
    }
    return os;
}

#ifdef TEST
#define dbg(x) {cerr << __LINE__ << "\t" << #x << ": " << x << endl;}
#define dbg0(x, n) {cerr << __LINE__ << "\t" << #x << ": "; for (int ABC = 0; ABC < n; ABC++) cerr << x[ABC] << ' '; cerr << endl;}
#else
#define dbg(x) ;
#define dbg0(x, n) ;
#endif

void przekierowanie()
{
#ifdef TEST
    freopen( "input.txt", "r", stdin );
    freopen( "output.txt", "w", stdout );
#endif
}

#define MAXN 100005

vector <vi> tree(  MAXN );
string start;
string koniec;

long n;

bool czy_rozwidlone()
{
    fi( 1, n ) if( tree[ i ].size() > 2 ) return true;
    return false;
}


bool sekwencje()
{
//szukanie poczatku
    long poczatek = 1;
    while( tree[ poczatek].size()  != 1 )
        poczatek ++;


    string sta0, kon0;

    sta0.push_back( start[ poczatek - 1 ] );
    kon0.push_back( koniec[ poczatek - 1 ] );
    auto poprz = poczatek;
    poczatek = tree[ poczatek ][ 0 ];
    while( tree[ poczatek].size()  != 1 )
    {
        sta0.push_back( start[ poczatek - 1] );
        kon0.push_back( koniec[ poczatek - 1] );
        auto x = tree[ poczatek ][ 0 ];
        auto y = tree[ poczatek ][ 1 ];
        if( x != poprz )
        {
            poprz = poczatek;
            poczatek = x;
        }
        else
        {
            poprz = poczatek;
            poczatek = y;
        }

    }
    sta0.push_back( start[ poczatek - 1] );
    kon0.push_back( koniec[ poczatek - 1] );

//   cout << sta0 << endl;
    //  cout << kon0 <<  endl;

    long st = 0;
    long ko = 0;

    string sta, kon;

    while( st < n)
    {
        sta.push_back( sta0[ st ] );
        auto st0 = st;
        while( st < n && sta0[ st ] == sta0[ st0] ) st ++;
    }

    while( ko< n)
    {
        kon.push_back( kon0[ ko ] );
        auto ko0 = ko;
        while( ko < n && kon0[ ko ] == kon0[ ko0] ) ko ++;
    }

    auto st_rozm = sta.size();
    auto ko_rozm = kon.size();
    if( sta[ 0 ] == kon[ 0 ]  )
        if( st_rozm >= ko_rozm )
            return true;
        else
            return false;
    else if( st_rozm > ko_rozm )
        return true;
    else
        return false;

}

bool czy_naprzemienny;

void naprzemiennosc( long node, long ojciec, char kolor_ojca )
{
    //  cerr << "ojciec: "<< ojciec << "   node: " << node << endl;
    auto moj_kolor = koniec[ node - 1];
    if( ojciec != -1 )
        if( moj_kolor == kolor_ojca )
            czy_naprzemienny = false;
    for( auto x: tree[ node ] )
        if( x != ojciec )
            naprzemiennosc( x, node, moj_kolor );
}

void task()
{
    //tree.clear();
    fi( 1, n )  tree[ i ].clear();
    start.clear();
    koniec.clear();
    cin >> n;
    cin >> start;
    cin >> koniec;

    for( long i = 1; i <= n - 1; i ++)
    {
        long a,b;
        cin >> a >> b;
        tree[ a ].pb( b );
        tree[ b ].pb( a );
    }

#ifdef TEST
    cout << "wczytano drzewo:" << endl;
    fi(1, n)
    {
        cout << i << " : ";
        cout << tree[ i ] << endl;
    }
#endif // TEST

    if( start == koniec )
    {
        cout << "TAK\n";
        return;
    }
    if( n == 1 )
    {
        cout << "NIE\n";
        return;
    }
    if( n == 2 )
    {
        if( (koniec == "11" || koniec == "00")&& (start == "01" || start =="10"))
        {
            cout << "TAK\n";
            return;
        }
        else
        {
            cout << "NIE\n";
            return;
        }
    }
    char znak = start[0];
    bool czy_mono = true;
    fi( 1, start.size() - 1 ) if( start[ i ] != znak ) czy_mono = false;
    if( czy_mono )
    {
        cout << "NIE\n";
        return;
    }
    /*
    znak = koniec[0];
    czy_mono = true;
    fi( 1, koniec.size() - 1 ) if( koniec[ i ] != znak ) czy_mono = false;
    if( czy_mono )
    {
        cout << "NIE\n";
        return;
    }*/

    if( n < 3 )
    {
        cout << "NIE\n";
        return;
    }
    if( !czy_rozwidlone() )
    {
        if( sekwencje())
            cout << "TAK\n";
        else
            cout << "NIE\n";
        return;
    }
    czy_naprzemienny = true;
    naprzemiennosc( 1, -1, ' ' );
    if( czy_naprzemienny )
        cout << "NIE\n";
    else
        cout << "TAK\n";
    return;
}


int main()
{
    FAST
    przekierowanie();
    long t;
    cin >> t;
    while( t -- )
        task();
    return 0;
}