import java.io.*;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.StringTokenizer;
import java.util.TreeSet;

public class Main {
	// in.next() in.nextInt() 
	// for (int i = 0; i < n; i++) a[i] = in.nextInt();
	// for (int i = 0; i < n; i++) for (int j = 0; j < m; j++) a[i][j] = in.nextInt();
	public static long mod = 1000000000 + 7;
	public static void main(String[] args) throws IOException {		
		//for (int ii = 0; ii <= 20; ii++) {	
			//String ext = new Integer(ii).toString() + ".txt";
			//InputReader in = new InputReader(new FileInputStream("input" + ext));
			//PrintWriter out = new PrintWriter(new FileOutputStream("output" + ext));			
			InputReader in = new InputReader(System.in);
			PrintWriter out = new PrintWriter(System.out);	
			int test = in.nextInt();
			for (int tt = 0; tt < test; tt++) {
			String s = in.nextLine(); long lev = s.length() + 1;
			long answer;
			if (lev % 2 == 1) answer = -1; else answer = 0;
			long count = 1;
			for (int i = 1; i < lev; i++) {
				if (i % 2 == lev % 2) {
					answer = (answer + count * 2) % mod;
				}
				count *= 2; count %= mod;
			}
			count = 1;
			for (int i = s.length() - 1; i >= 0; i--) {
				if (s.charAt(i) == 'r') {
					answer = (answer + count * 2) % mod;
				}
				count *= 2; count %= mod;
			}
			answer =  (answer + 2) % mod;
			//out.println(answer);
			System.out.println(answer);
			}
			//out.close();
		//}
	}
}

class InputReader {
	public BufferedReader reader;
	public StringTokenizer tokenizer;

	public InputReader(InputStream stream) {
		reader = new BufferedReader(new InputStreamReader(stream));
		tokenizer = null;
	}
	public String nextLine() throws IOException {
		return reader.readLine();
	}
	public String next() {
		while (tokenizer == null || !tokenizer.hasMoreTokens()) {
			try {
				tokenizer = new StringTokenizer(reader.readLine());
			} catch (IOException e) {
				throw new RuntimeException(e);
			}
		}
		return tokenizer.nextToken();
	}
	
	public double nextDouble() {
		return Double.parseDouble(next());
	}
	
	public long nextLong() {
		return Long.parseLong(next());
	}

	public int nextInt() {
		return Integer.parseInt(next());
	}
}