Q: If I nodded, images of the lab still fresh in my mind., can we say that "The air conditioner in the lab was broken"?

A: it is not possible to tell

Q: If She apparently couldn't recall what had happened to the others., can we say that "She couldn't remember what happened to the other people who had left the city."?

A: it is not possible to tell

Q: If I was the youngest Ser ever to be accepted for training as a Sather., can we say that "No Ser younger than me has ever trained to be a Sather."?

A: yes

Q: If Trinity's most important possession is the ninth-century Book of Kells., can we say that "The Book of Kells is worth a lot of money."?

A:
it is not possible to tell