Consider that a journalist wants to create a simple database forcovering the
2010 Tour de France cycling race. The race consists of a number ofstages
identified by a starting and destination city. Each stage iscompleted on a single
date, and goes over a specific number of kilometers.
Riders (first name and last name, which together are unique) areemployed by
a team which is identified by a name and is managed by the teamboss. Each
team has a sponsor (identified by the unique sponsor name) and eachsponsor is
only allowed to support one team. The team boss is not a rider andis identified
by his/her first and last name
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