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ABEN (A (B (E, B, N, A), C (E, B, N, A), A (N, E, B, A), D (B, E, N, A)),…
ABEN
A
B
E
B
N
A
C
E
B
N
A
A
N
E
B
A
D
B
E
N
A
E
B
E
B
N
A
C
E
B
N
A
A
N
E
B
A
D
B
E
N
A
B
B
E
B
N
A
C
E
B
N
A
A
N
E
B
A
D
B
E
N
A
N
B
E
B
N
A
C
E
B
N
A
A
N
E
B
A
D
B
E
N
A