Question: Sentence A: I speak for you also, I know.

Sentence B: I understand that I'm speaking for both of us.

If sentence A is true, how about sentence B?

Answer: yes

Question: Sentence A: The original decoration has long since disappeared.

Sentence B: The original decoration still stands there to this day.

If sentence A is true, how about sentence B?

Answer: no

Question: Sentence A: well i bet it's not bad

Sentence B: Nobody could possibly deal with this.

If sentence A is true, how about sentence B?

Answer: no

Question: Sentence A: I've papers for them.

Sentence B: These papers I have are to be delivered to them on instructions from the boss.

If sentence A is true, how about sentence B?

Answer:
it is not possible to tell