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Learn a Fact: 1 x 2

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

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