Syllogisms

Colts fans love football.
Kurt is a colts fan.
Kurt loves football.

-- Valid syllogism
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All dogs have fur.
Jerry has fur.
Jerry is a dog.

-- invalid syllogism because Jerry could have fur but be another animal other than a dog.
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"After a long day of class and practice, Kyle was very tired. Kyle is a student-athlete at Purdue. When he woke up the next morning, he fell asleep in all his classes because he was still so tired from the day before."

College athletes have long and strenuous days.
Kyle is a college athlete.
Kyle is often tired.