Tremendously challenging.

And this is a very challenging idea. It's a very challenging idea to mainstream media.

Demanding things and leaving like this.

Ghosts demanding Justice

And that's challenging because it's easy.

That was challenging.

Why so challenging?

Activate Window Demanding Attention

He started demanding it.

What are they demanding?

Lovely persons aren't demanding.

You know the uni is the most challenging, so number ten is challenging.

Emerging and challenging issues deriving from implementation

And people reinventing themselves in challenging times.

It's this immensely exciting and challenging problem.

And as a demanding teenager, questioning the status quo and demanding change, it should continue to do so in the future.

Challenging gender based violence

Not a challenging task.

136. Dialogue, discussion and agreement are demanding activities.

The world has changed, and it's demanding action.

It would be a challenging and difficult task.

The consumer is demanding it.

People are demanding a retrial.

He's a very demanding person.

He's demanding the death penalty.

Emerging and challenging issues deriving from implementation and necessary

Human relationships are rich and they're messy and they're demanding.

And now Brazilians are in the streets demanding change.

A bit more challenging, right?

So this is more challenging

Are you challenging my orders?

All this activity clearly points to a bustling economy, with consumers, soldiers, engineers, architects all demanding innovation and all demanding new technology.

Of course, the issues are highly complex and challenging.

They are demanding shorter working hours.

Contingency planning is a demanding exercise.

Our commitment is demanding but achievable.

We're demanding compensations of 13 million.

It is a greeting that is demanding, committed and hopeful.

A bit more challenging, right? (Laughter)

It's not very challenging any more.

Your job needs to be challenging.

This is challenging work to do.

Something is very challenging to me.

But at the same time we have to remember that in Tunisia... when people first took to the streets, they were demanding jobs... they were demanding social justice, they were demanding freedom.

The year ahead will be challenging and rife with uncertainty.