add-city albany
add-city newyork
add-city boston
add-city buffalo
add-city chicago
add-link albany newyork
add-link albany boston
add-link newyork boston
add-link albany buffalo
add-link buffalo chicago
place-pursuer binh newyork
place-pursuer buster newyork
place-pursuer chris newyork
place-evader sally chicago
place-evader thomas boston
place-evader frederick albany
place-evader samantha chicago
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tick 5
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