Question 625056
B &#8838;C and C &#8838;B  (true)
 A &#8834;B and D &#8834;A   (false)
 D &#8838;B and B &#8838;D   (false)
 D &#8838;B and B &#8838;D    (false)
 A &#8838;C and D &#8834;A    (false)

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