import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.math.BigInteger;
import java.util.Arrays;
import java.util.NoSuchElementException;

public class Main {

	public static void main(String[] args) {
		new Main().run();
	}
	
	long inv(long a) {
		return pow(a,MOD-2);
	}
	
	long pow(long a,long n) {
		return n!=0?pow(a*a%MOD,n/2)*(n%2==1?a:1)%MOD:1;
	}
	
	final long MOD=(long)1e9+7;
	
	void run() {
		FastScanner sc=new FastScanner();
		int H=sc.nextInt();
		int W=sc.nextInt();
		long[][] A=new long[H][W];
		long[] AH=new long[H];
		long[] AW=new long[W];
		long[] zH=new long[H];
		long[] zW=new long[W];
		int zeros=0;
		long tot=1;
		Arrays.fill(AH, 1);
		Arrays.fill(AW, 1);
		for (int i=0;i<H;++i) {
			for (int j=0;j<W;++j) {
				A[i][j]=sc.nextLong();
				if (A[i][j]==zeros) {
					zeros++;
					zH[i]++;
					zW[j]++;
				} else {
					AH[i]=AH[i]*A[i][j]%MOD;
					AW[j]=AW[j]*A[i][j]%MOD;
					tot=tot*A[i][j]%MOD;
				}
				AH[i]%=MOD;
				AW[j]%=MOD;
			}
		}
		PrintWriter pw=new PrintWriter(System.out);
		int Q=sc.nextInt();
		while (Q-->0) {
			int r=sc.nextInt()-1;
			int c=sc.nextInt()-1;
			if (zH[r]+zW[c]-(A[r][c]==0?1:0)!=zeros) {
				System.out.println(-1);
			} else {
				long ans=tot*inv(AH[r])%MOD*inv(AW[c])%MOD;
				if (A[r][c]!=0) {
					ans=ans*A[r][c]%MOD;
				}
				pw.println(ans);
			}
		}
		pw.close();
	}
	
	void tr(Object...objects) {System.out.println(Arrays.deepToString(objects));}
	
	
	class FastScanner {
	    private final InputStream in = System.in;
	    private final byte[] buffer = new byte[1024];
	    private int ptr = 0;
	    private int buflen = 0;
	    private boolean hasNextByte() {
	        if (ptr < buflen) {
	            return true;
	        }else{
	            ptr = 0;
	            try {
	                buflen = in.read(buffer);
	            } catch (IOException e) {
	                e.printStackTrace();
	            }
	            if (buflen <= 0) {
	                return false;
	            }
	        }
	        return true;
	    }
	    private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;}
	    private boolean isPrintableChar(int c) { return 33 <= c && c <= 126;}
	    private void skipUnprintable() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++;}
	    public boolean hasNext() { skipUnprintable(); return hasNextByte();}
	    public String next() {
	        if (!hasNext()) throw new NoSuchElementException();
	        StringBuilder sb = new StringBuilder();
	        int b = readByte();
	        while(isPrintableChar(b)) {
	            sb.appendCodePoint(b);
	            b = readByte();
	        }
	        return sb.toString();
	    }
	    public long nextLong() {
	        if (!hasNext()) throw new NoSuchElementException();
	        long n = 0;
	        boolean minus = false;
	        int b = readByte();
	        if (b == '-') {
	            minus = true;
	            b = readByte();
	        }
	        if (b < '0' || '9' < b) {
	            throw new NumberFormatException();
	        }
	        while(true){
	            if ('0' <= b && b <= '9') {
	                n *= 10;
	                n += b - '0';
	            }else if(b == -1 || !isPrintableChar(b)){
	                return minus ? -n : n;
	            }else{
	                throw new NumberFormatException();
	            }
	            b = readByte();
	        }
	    }
	    public int nextInt() {
	    	return (int)nextLong();
	    }
	}
}