<em>THE RULES</em><br>
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<em></em> No surface construction works at the urban heritage conservation area {conservation_area}<br>
<em></em> A underground station in the urban heritage conservation area is only allowed inside of {abbey_station}<br>
<em></em> The great abbey station may only be extended by underground constructions<br>
<em></em> No more factories in future caused by population growth<br>
<em></em> Headquarter construction only inside {hq_area}<br>
<em></em> No air, monorail, maglev transport systems<br>
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