Question:
If it were, they may all be dead.

Does it follow that "If it wasn't, they are all happy."?
Answer:
no

Question:
'All aboard,' he said.

Does it follow that "He told them to get off."?
Answer:
no

Question:
Ever see anything like them?

Does it follow that "This is the first time I am seeing anything like this."?
Answer:
it is not possible to tell

Question:
we really missed them when they were gone because the ones from the grocery store just can't compare

Does it follow that "I prefer buying them from the grocery store."?
Answer:
no