| Phase 2: Understand Intentions |
| Vehicle |
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| getHorsepower():int |
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| getWeight():int |
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| getOwner():Person |
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| ! |
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| anEngine:Engine |
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| aHorsepower:int |
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| Engine |
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| getCost():int |
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| getCylinders():int |
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| aCost:int |
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| numCylinders:int |
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