Anchor: What makes Linux enthralling from a tech-head's point of view is that it is based on Unix standards that have been around for decades.
Entailed: One of Linux's selling points is its long history.
Contradiction: Linux is an entirely new creation and is therefore not trusted by tech-heads.
Contradiction: I think we've already spend around an hour talking about football. 
Contradiction: There is a steamroller on a street.
Contradiction: Two dogs are running after a cat.
Contradiction: People are taking a break outdoors.