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:
Michigan Radio
Table title:
Stations
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Location </th><th colspan=1 rowspan=1 > Frequency </th><th colspan=1 rowspan=1 > Call sign </th><th colspan=1 rowspan=1 > Operator </th></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Ann Arbor </td><td class="highlighted"  colspan=1 rowspan=1 > 91.7 FM </td><td class="highlighted"  colspan=1 rowspan=1 > WUOM </td><td class="highlighted"  colspan=1 rowspan=1 > University of Michigan </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Flint </td><td class="highlighted"  colspan=1 rowspan=1 > 91.1 FM </td><td class="highlighted"  colspan=1 rowspan=1 > WFUM </td><td class="highlighted"  colspan=1 rowspan=1 > University of Michigan–Flint </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Grand Rapids </td><td class="highlighted"  colspan=1 rowspan=1 > 104.1 FM </td><td class="highlighted"  colspan=1 rowspan=1 > WVGR </td><td class="highlighted"  colspan=1 rowspan=1 > University of Michigan </td></tr>
</table>
Question:
What is Michigan Radio?
Answer:
Michigan Radio is a network of three FM radio stations (WUOM/Ann Arbor, WFUM/Flint, and WVGR/Grand Rapids) in the southern lower peninsula of Michigan, which are operated by the University of Michigan.