Here are some concepts: scent, tiger, tree

What is a sentence about these concepts?

Sentence is below.
a young male tiger sniffs a tree trying to find scents of other tigers .

Here are some concepts: event, leader, software

What is a sentence about these concepts?

Sentence is below.
organization leader announces the availability of operating system software at launch event .

Here are some concepts: box, donut, flavor

What is a sentence about these concepts?

Sentence is below.
Six donuts of varies flavors in a box

Here are some concepts: build, league, stadium

What is a sentence about these concepts?
Sentence is below.
soccer stadium built for soccer league