Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
Eduardo L. Joson National High School
Table title:
High School Levels & Sections
Table:
<table id='hittask' contenteditable='False'>
<tr> <th class="highlighted"  colspan=1 rowspan=1 > Grade 7 </th><th class="highlighted"  colspan=1 rowspan=1 > Grade 8 </th><th class="highlighted"  colspan=1 rowspan=1 > Grade 9 </th><th class="highlighted"  colspan=1 rowspan=1 > Grade 10 </th></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 7-Sampaguita </td><td class="highlighted"  colspan=1 rowspan=1 > 8-Narra </td><td class="highlighted"  colspan=1 rowspan=1 > 9-Rizal </td><td class="highlighted"  colspan=1 rowspan=1 > 10-Earth </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 7-Rose </td><td class="highlighted"  colspan=1 rowspan=1 > 8-Mahogany </td><td class="highlighted"  colspan=1 rowspan=1 > 9-Bonifacio </td><td class="highlighted"  colspan=1 rowspan=1 > 10-Jupiter </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 7-Camia </td><td class="highlighted"  colspan=1 rowspan=1 > 8-Acacia </td><td class="highlighted"  colspan=1 rowspan=1 > 9-Mabini </td><td class="highlighted"  colspan=1 rowspan=1 > 10-Uranus </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 7-Marigold </td><td class="highlighted"  colspan=1 rowspan=1 > 8-Banaba </td><td class="highlighted"  colspan=1 rowspan=1 > 9-Del Pilar </td><td class="highlighted"  colspan=1 rowspan=1 > 10-Saturn </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 7-Cattleya </td><td class="highlighted"  colspan=1 rowspan=1 > 8-Ipil </td><td class="highlighted"  colspan=1 rowspan=1 > 9-Quezon </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 7-Sunflower </td><td class="highlighted"  colspan=1 rowspan=1 > 8-Molave </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
</table>
Question:
What are class section names based on?
Answer:
Class section names are based by name of Flowers (Grade 7), Trees (Grade 8), Philippine national heroes (Grade 9) and Planets (Grade 10).