Learn a Fact: 1 x 4

1
9
x  0
2
6
x  0
3
6
x  1
4
0
x  3
5
2
x  0
6
1
x  9
7
7
x  1
8
2
x  1
9
7
x  0
10
0
x  4
11
8
x  1
12
5
x  0
13
4
x  1
14
1
x  1
15
1
x  5
16
0
x  8
17
1
x  3
18
0
x  1

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