"I wonder whether that means that she _can_ cook on an oil-stove or that
she _can't_ cook on any other kind? And does the 'no risk' refer to her or
the stove? It's not very clear. I don't think we'll take up this one's
references. Besides I shouldn't like one that was tired for six days."
"Out of every seven," I added, "and the seventh day would be the Sabbath,
and her day off."
"Go on to the next," said Phyllis firmly.