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|X -> Y =
* Meet '''ALL''' of the following requirements:
* Meet '''ALL''' of the following requirements:
−
** No '''Slow''' (F)BB(V) (Engines irrelevant)
+
** If amount of (F)BB(V)+CV(B) ≥ 3, no '''Slow''' (F)BB(V) allowed (Engines irrelevant)
** Amount of CV(L/B) ≤ 1
** Amount of CV(L/B) ≤ 1