The trustees are considering naming the Washington Roebling chief engineer.
You have never supervised anything of this scale and magnitude, Roebling, is that right?
ROEBLING: No one has.
H. P. Grice considers this in his Oxford lectures on conversational implicature (yes, he was using that phrase, 'conversational implicature' back then -- BEFORE Harvard).
Surely, Washington Roebling is being more informative than is required.
The implicature is: