The sky was filled with cirrus intortus clouds, creating a beautiful scenery.

The cirrus intortus cloud was floating in the sky, creating a beautiful scenery.

The theory of quantum entanglement is one of the most complex parts of physics.

The phenomenon of quantum entanglement is a very interesting topic in physics.

Quantum entanglement is one of the most mysterious phenomena in physics.

She was struggling to comb her tangled hair.

Untangling her tangled hair was difficult.

She was moved when she caught the first sight of the beautiful scenery.

When starting a big project, one should remember the proverb 'start with what's near at hand'.

The food chain of this forest is very complex.