Brown, kneeling on the hatch-coaming, knitted his brows.
"Lister's Great Adventure" by Harold Bindloss
Then she gasped, for he stepped on the coaming and plunged overboard in a beautiful, arching dive.
"Big Timber" by Bertrand W. Sinclair
You're young, and you're full to the coamings with confidence.
"A Master of Fortune" by Cutcliffe Hyne
He stumbles against a hatch-coaming and kicks his shoe across the deck.
"A Gunner Aboard the "Yankee"" by Russell Doubleday
To my joy the canoe, which still floated with its coamings out of water, although the well was full, followed my line.
"Jethou" by E. R. Suffling
Did I not just meet him at the main hatch so drunk he fell over the coamings.
"Prisoners of Chance" by Randall Parrish
Later in the day, after supper, in the second dog-watch, as I sat smoking on the fore-coamings, he came up to me and spoke to me.
"Great Sea Stories" by Various
He sat down on the hatch coaming and covered his face with his hard red hands.
"Captain Scraggs" by Peter B. Kyne
The water is pretty well up to the coamings already, and my weight won't make the difference which yours might.
"The Three Lieutenants" by W.H.G. Kingston
I looked over the coamings of the hatchway; the decks were clear of smoke, for not a gun was being fired.
"Percival Keene" by Frederick Marryat
It is easy to see that one-way permutations cannot be based on NP-completeness, unless NP = coNP (or AM = coAM if one allows randomized reductions, or NP/poly = coNP/poly if one allows non-uniform reductions).
Akavia et al. [AGGM06] prove that one-way functions cannot be based on NP-complete problems via non-adaptive reductions unless AM = coAM (see Section 7.3).
Then it is not diﬃcult to see that L must be in AM ∩ coAM (NP ∩ coNP if the reduction is deterministic).
It follows that the average-case hardness of any one-way permutation can be based, at best, on the worst-case hardness of some problem in AM ∩ coAM.
They observe that if there is a reduction from a language L to an adversary for an encryption scheme of this type, then L ∈ AM ∩ coAM.