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:
Lakota language
Table title:
Verb inflection
Table:
<table id='hittask' contenteditable='False'>
<tr> <td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > singular </td><td class="highlighted"  colspan=1 rowspan=1 > dual </td><td class="highlighted"  colspan=1 rowspan=1 > plural </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > first person </td><td colspan=1 rowspan=1 > wa- </td><td colspan=1 rowspan=1 > uŋ(k)- </td><td colspan=1 rowspan=1 > uŋ(k)- … -pi </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > second person </td><td colspan=1 rowspan=1 > ya- </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > ya- … -pi </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > third person </td><td colspan=1 rowspan=1 > unmarked </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > pi </td></tr>
</table>
Question:
What are verbs inflected for? 
Answer:
Verbs are inflected for first-, second- or third person, and for singular, dual or plural.