And it would raise a question mark over the means testing of social care.
Taken in its strictest definition, there is a question mark over whether celibacy is possible.
Committee member Raymond McCartney said the case put a question mark over the future of supergrass trials.
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There is in any case a large a question mark over the take-up of elected mayors outside London.
On the domestic front, the clouds of inflation hover, putting a question mark over the sunny economic outlook.
The row with Global Marine also puts a question mark over an order for two other vessels from that firm.
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Indeed, there was a question mark over why the Bannsiders hadn't been awarded a penalty for Murphy's moment of madness.
For many, that leaves a question mark over whether he is willing and able to take the BOE in a different direction.
Celtic were toying with the visitors, whose confidence had utterly evaporated, leaving a question mark over the future of under-pressure Aberdeen manager Mark McGhee.
He reckoned that if he wasn't around any more, there'd always been a question mark over his guilt, which would be good for his children.
"The work is at a highly experimental stage and there's still a question mark over the capacity of these cells to form tumours, " she said.
It will also leave a question mark over the next series of The Apprentice, as one of Chiles's BBC roles was presenting its spin-off, You're Fired.
In the meantime, there has been a question mark over what will happen to council tax benefit - the most widely-claimed benefit or tax credit in Wales.
The loss of Lib Dem support would place a question mark over the future of the bill as the Conservatives would struggle to push it through Parliament alone.
"It leaves a question mark over this race, and we won't have the final answer until the votes are counted, " said David Gergen, a senior political analyst for CNN.
That move, privately lamented by most government ministers, not only puts a question mark over Ms Bachelet's stated commitment to more open government, but also poses a potential threat to accountability.
The caveat for Swift is that it sees stars at the ends of their lives, and there has to be a question mark over whether the redshift 8-10 era would be sufficiently mature to produce GRBs.
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In an interview with BBC Radio 4's Week in Westminster programme, Mr Mandelson said it "would be a setback for the peace process and it would place a question mark over the continued and full implementation of the Good Friday Agreement".
There is also a question mark over whether the work will need to be completed before applying, which would mean over 200, 000 people working as healthcare assistants, or once someone has gained a place on a course, which would require 20, 000 posts to be found.
The whole thing is scary, because there's a question mark hanging over my head.
But the financial crisis has raised a fresh question mark over that idea.
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So that means I have to put a big question mark over myself.
With a question mark hanging over the pilot of SQ006 at Taipei, any suggestion of pilot error usually comes with serious legal consequences.
Venezuela's entry, assuming it goes ahead, puts a question-mark over Mercosur's newly established dispute-resolution tribunal, as well as its plans for closer macro-economic co-ordination.
The act also eased the restrictions on postal voting, a provision that has placed a large question mark over the probity of British electoral arrangements.
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There is also a large question mark over the resources committed.
Government spending is growing faster than the economy as a whole, but both private and public sectors still invest too little, planting a question-mark over those rosy growth forecasts.
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They have to rip up all the good work of the last 12 months and start again from scratch - and there has to be a huge question mark over whether they can bounce back in those circumstances.
But there is a big question-mark over the willingness of even a right-wing government to sell more than 49% of the company.
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