In this task, you are given an article. Your task is to summarize the article in a sentence.

But the sixty-minute session in which Facebook's founder was first interviewed by a journalist from Wired, then joined on stage by three mobile operators, was one big yawn, a missed opportunity.
Okay, the subject of the session - Facebook's mission to get people in the developing world online via something called internet.org - was not, on the face of it, controversial.
And Mr Zuckerberg was allowed to paint his business, in that typically happy-clappy Californian way, as motivated only by a desire to enrich more lives through an internet connection.
But there are some nagging questions to be asked about internet.org. It may sound great that mobile phone users in Kenya, for instance, are getting free internet access to sites like Wikipedia, one local Kenyan news site, BBC Swahili - and, of course, Facebook.
But who acts as the gatekeeper for this walled garden - and what about those other local news sites that aren't on the site and have to charge for access?
And what price net neutrality in Africa? A two-speed internet has just been ruled out in the United States by the Federal Communications Commission. But the laudable mission of internet.org could end up creating fast lanes for those deemed worthy by Mr Zuckerberg and his lieutenants.
Then there's the thorny question of Facebook's relationship with mobile phone operators. It was amusing to reflect that the three mobile companies represented on the stage could probably be gobbled up for breakfast by the hugely wealthy social network without a second thought.
Mobile networks are seeing their revenues threatened by messaging apps like WhatsApp, bought by Facebook a while back. Meanwhile, they are still much more heavily regulated - Deutsche Telekom's boss made a call in Barcelona for internet firms to face the same level of regulation.
But on stage the mobile operators joined in the love-in, praising Mr Zuckerberg's campaign for increasing the flow of data across their networks.
Facebook's founder was briefly asked about regulation. His answer, somewhat bizarrely for the chief executive of a major communications company, was that he did not understand the subject - "I'm not a regulator".
He kept repeating this phrase and was allowed to laugh off the very idea that regulation was anything to do with him.
The self-congratulatory session ended with little light shed on how the fractious relationship between the social network and the companies which have built the internet's infrastructure might develop.
But some time soon - just as Google has already discovered - the regulators will come knocking. Mr Zuckerberg will need to have some answers then.
He's probably the single most influential figure in the world of mobile communications, so Mark Zuckerberg's appearance at the Mobile World Congress was always bound to be a hot ticket.

So perhaps we should be profoundly grateful that the coalition government elected in 2010 failed so miserably in its ambition to rebalance the UK towards the makers and away from services (UK manufacturing is still more than 5% smaller than it was before the 2008 crash, whereas the service sector is about 10% bigger).
The point is that manufacturing seems to be struggling again: its output fell 0.5% in July compared with a year ago - and was 0.8% lower compared with the previous month.
As for exports of goods, they fell by Â£2.3bn to Â£22.8bn in July - to their lowest since September 2010.
And it was a widening of our deficit with the rest of the world in trade of physical stuff that was wholly responsible for an enlargement of the overall deficit in goods and services to Â£3.4bn.
Of course it would be foolish to read too much into a single month's figures, but more recent survey data suggests that these statistics are neither anomalous nor a temporary blip.
What is going on? Why, at a time when the British economy is one of the few economic bright spots in the rich developed world, are our manufacturers staring at possible recession?
Well the pound has been strengthening, making our exports less competitive, and the world economy has been slowing down, cutting demand for what we make.
This slowdown has been caused in large measure (as you will surely know by now, since I've been banging on about it) by a deceleration of Chinese growth that has infected the emerging market half of the global economy particularly badly.
All the signs are that this global economy will weaken further.
So thank goodness that we have a world-class service sector, which is around 80% of our economy and seems to be less sensitive to global economic conditions.
And hooray for mild deflation that is increasing British households' disposable income and encouraging them to spend a bit more.
But the economy cannot grow at the current rate of 2.5% a year forever based purely on domestic demand - because we are buying more from the rest of the world than we sell to the rest of the world, and are financing our growth by borrowing from the rest of the world at an unsustainably great rate of 5% of GDP or national income.
Or to put it another way, we run the risk that at some point our overseas creditors won't wish to lend quite so much to us to finance our lifestyles - and at that point, they would want their money back and would dump sterling.
At which ill-starred juncture, the price of imports would shoot up and inflation would rise, forcing the Bank of England to raise interest rates more than would be comfortable in our heavily indebted economy.
Which is another way of saying, as if you hadn't guessed, that we are not immune to global economic conditions, even if right now we - and the US - seem to be jogging along quite nicely, as Japan and the eurozone are struggling to walk.
But let's not end on a sour or dismal note.
Some may despair that the rebirth of British manufacturing hasn't been all that might be desired, but the UK's 5% manufacturing shrinkage since the peak is as nothing compared with the 23%, 16% and 14% contractions suffered by Italy, France and Japan respectively.
If the British economy was driven by manufacturing we could well be in seriously dire economic straits, figures released today show.

The 22-year-old joined Forest from Chesterfield in January but has so far failed to make a first-team appearance for the Championship club.
Former United States Under-23 international Ariyibi featured 96 times for the Spireites, scoring four times.
"I want to be playing, plus the gaffer really wanted me to come here and that gives me a lot of belief," he said.
Find all the latest football transfers on our dedicated page.

League One side MK Dons have signed winger Gboly Ariyibi on a season-long loan deal from Nottingham Forest.

