message: All ships have the same minimum sea size
diff: </TechTypes>
  <iCost>60</iCost>
  <iAdvancedStartCost>100</iAdvancedStartCost>
  - <iMinAreaSize>12</iMinAreaSize>
  + <iMinAreaSize>20</iMinAreaSize>
  <iMoves>3</iMoves>
  <iNukeRange>-1</iNukeRange>
  <TerrainImpassables>
  </TechTypes>
  <iCost>60</iCost>
  <iAdvancedStartCost>100</iAdvancedStartCost>
  - <iMinAreaSize>12</iMinAreaSize>
  + <iMinAreaSize>20</iMinAreaSize>
  <iMoves>4</iMoves>
  <iNukeRange>-1</iNukeRange>
  <TerrainImpassables>
  <PrereqTech>TECH_GUILDS</PrereqTech>
  <iCost>60</iCost>
  <iAdvancedStartCost>100</iAdvancedStartCost>
  - <iMinAreaSize>12</iMinAreaSize>
  + <iMinAreaSize>20</iMinAreaSize>
  <iMoves>3</iMoves>
  <iNukeRange>-1</iNukeRange>
  <TerrainImpassables>
  </PrereqBonuses>
  <iCost>70</iCost>
  <iAdvancedStartCost>100</iAdvancedStartCost>
  - <iMinAreaSize>12</iMinAreaSize>
  + <iMinAreaSize>20</iMinAreaSize>
  <iMoves>3</iMoves>
  <iNukeRange>-1</iNukeRange>
  <TerrainImpassables>
  </PrereqBonuses>
  <iCost>120</iCost>
  <iAdvancedStartCost>100</iAdvancedStartCost>
  - <iMinAreaSize>12</iMinAreaSize>
  + <iMinAreaSize>20</iMinAreaSize>
  <iMoves>3</iMoves>
  <iNukeRange>-1</iNukeRange>
  <TerrainImpassables>
  </PrereqBonuses>
  <iCost>200</iCost>
  <iAdvancedStartCost>100</iAdvancedStartCost>
  - <iMinAreaSize>12</iMinAreaSize>
  + <iMinAreaSize>20</iMinAreaSize>
  <iMoves>6</iMoves>
  <iNukeRange>-1</iNukeRange>
  <iCombat>28</iCombat>
  