Qualitative Spatial Reasoning with Directional and Topological Relations

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td align="left">Continent</td><td align="center">Country</td><td align="center">State</td><td align="center">County</td><td align="center">City</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td align="left">1</td><td align="center">3</td><td align="center">42</td><td align="center">30</td><td align="center">34</td></tr><tr><td align="center" colspan="5"><hr/></td></tr><tr><td align="left">Ocean</td><td align="center">Mountain</td><td align="center">Lake</td><td align="center">River</td><td align="center"> </td></tr><tr><td align="center" colspan="5"><hr/></td></tr><tr><td align="left">2</td><td align="center">2</td><td align="center">7</td><td align="center">6</td><td align="center"> </td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Mathematical Problems in Engineering

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Table 4

Table 4: Qualitative Spatial Reasoning with Directional and Topological Relations 