Her personal life has also clearly been difficult over the past few years.
"This fault has proved a complex one to resolve and our engineers' efforts have also been hampered by the difficult weather conditions, " it said in a statement.
Management have also said that it has been difficult to maintain productivity when at times up to 1, 000 workers are brought in on short-term contracts.
It may have been an unusually difficult period for our economy but it has also been a surprisingly equitable one.
It has lasted for much longer than expected, in part because there was more around than had been thought, but also because technological advances made it more profitable to pump out oil that had been difficult to get at.
But I think it's also a time to remember that this has been a very difficult year, and a lot of people out there are having a very, very tough time.
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Not only does it suggest a new commitment to openness, and a willingness of newspapers and non-governmental organisations to speak up, but the revelations have also been backed up by fledgling efforts to make corruption more difficult.
An online petition has been launched, with campaigners saying the lift is also difficult for those with pushchairs and heavy luggage to use.
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In macro-land there is also a need for both to work together, but that has been difficult recently, in part because each point of view has taken on the aura of religious fervor.
As noted above, there is no benchmark for accurate search results or for accurate credit ratings, so it is difficult not only to know whether information has been distorted but also to devise a rule that would prevent it.
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There have been calls for wealthy pensioners to be taxed more, although that would also be politically difficult.
It is also difficult to know with precision the nature and degree of the harm that may have been prevented.
Sharleen McLennon, who also had been homeless and found support with Quarriers, said she had "no idea just how difficult it would be" to live alone and she could not cope with her own house as she did not have the skills required.
He also told Reuters that most of the weapons evidence has been found but that any further search would be much more difficult after control of the country is returned to Iraqis.
There has also been criticism that because dentists now receive a flat salary, they no longer have any financial incentive to carry out difficult work such as crowns and bridges.
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