＃i nclude <cstdio>
＃i nclude <cstring>
#define ll long long
#define M 1000000007
using namespace std;

ll ans,tot,n,num,num_R,now_r;
char s[888];

ll power(ll a,ll b)
{
    ll total=1;
    while (b)
    {
        if (b&1) total*=a;
        a*=a;
        b>>=1;
        if (total>=M) total%=M;
        if (a>=M) a%=M;
    }
    return total;
}

int main()
{
    int T;
    scanf("%d",&T);
    while (T--)
    {
        memset(s,0,sizeof s);
        scanf("%s",s);
        num=num_R=0;
        for (int i=0; s[i]; i++)
            num+=(s[i]=='?'),num_R+=(s[i]=='R');
        ans=0;
        if (num_R==0) ans++;
        for (int i=0; s[i]; i++)
        {
            if (s[i]=='G') continue;
            if (num_R==0) ans++;
            if (num_R==1 && s[i]=='R') ans++;
            for (int j=1; s[i+j]; j+=2)
            {
                now_r=(s[i]=='R');
                for (int k=i+j; s[k]; k+=j)
                {
                    if (s[k]=='G') break;
                    if (s[k]=='R') now_r++;
                    if (now_r==num_R) ans++;
                }
            }
            if (s[i]=='R') break;
        }
        tot=power(2,num);
        ans=((tot-ans)%M+M)%M;
        printf("%I64d\n",ans);
    }
    return 0;
}