Building a graph

Exercise

Two-doorRedFordMustang

car123

modelcolor

make

doors

red

Ford

Mustang

2-door

car123

modelcolor

make

doors

red

Ford

Mustang

2-door

Bob buys the car for $22,310 on 2006-07-02from El Rio Ford.

car123

red

Ford

Mustang

2-door

modelcolor

make

doors

Bob787

purchased by purchase price

pDate

2006-07-02

$22,310

ElRioFord

purchased from

car123

red

Ford

Mustang

2-door

modelcolor

make

doors

Bob787

purchased by purchase price

pDate

2006-07-02

$22,310

Hint: an event is a thing

car123

red

Ford

Mustang

2-door

modelcolor

make

doors

Bob787

purchased by purchase price

pDate

purchase event72ElRioFord Pfrom

$22,310

2006-07-02

car123

red

Ford

Mustang

2-door

modelcolor

make

doors

Bob787

purchased by purchase price

pDate

purchase event72ElRioFord Pfrom

$22,310

2006-07-02

Next: Bob sells the car to Mary on 2011-02-03 for $7,250

car123

red

Ford

Mustang

2-door

modelcolor

make

doors

Bob787

purchased by purchase price

pDate

purchase event72ElRioFord Mary88

purchase event142

Pfrom

Pfrom

$22,310

2006-07-02

2011-02-03

$7,250

car123

red

Ford

Mustang

2-door

modelcolor

make

doors

Bob787

owned by

Mary88

purchase event142

Purchased from

2011-02-03

$7,250

car123

red

Ford

Mustang

2-door

modelcolor

make

doors

Bob787

purchased by purchase price

pDate

purchase event72ElRioFord Mary88

purchase event142

Pfrom

Pfrom

$22,310

2006-07-02

2011-02-03

$7,250

Review: “This is a great car!”

car123

red

Ford

Mustang

2-door

modelcolor

make

doors

Bob787

purchased by purchase price

pDate

purchase event72ElRioFord Mary88

purchase event142

Pfrom

Pfrom2006-07-02

$22,310

$7,250

“This is a great car!”Car&Driverreviews

2011-02-03