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:
Choshi Electric Railway 700 series
Table title:
Build details
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > No. </th><th colspan=1 rowspan=1 > Former No. </th><th colspan=1 rowspan=1 > Build date </th><th colspan=1 rowspan=1 > Withdrawal date </th></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > DeHa 701 </td><td class="highlighted"  colspan=1 rowspan=1 > MoHa 51 </td><td class="highlighted"  colspan=1 rowspan=1 > 1942 </td><td colspan=1 rowspan=1 > September 2010 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > DeHa 702 </td><td class="highlighted"  colspan=1 rowspan=1 > MoHa 52 </td><td class="highlighted"  colspan=1 rowspan=1 > 1942 </td><td colspan=1 rowspan=1 > January 2010 </td></tr>
</table>
Question:
In 1942, what were the two models and what were they modified into?
Answer:
Two 1942's MoHa 51 and MoHa 52 were modified to DeHa 701 and DeHa 702 respectively.