The core elements of the planning/competition link are as 
The main elements of the planning link are...
The main elements of the apple are the core.
A student in a science lab studies a sample.
Cooking is being done.
A man is walking across the floor.
A man is sitting on a couch.
The beaches are congested with rowdy tourists, much like the rest of the island, but worse.
The town used to be beautiful, but is now filled with inhumanity.