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:
Fort Mills
Table title:
Construction
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Name </th><th colspan=1 rowspan=1 > No. of guns </th><th colspan=1 rowspan=1 > Gun type </th><th colspan=1 rowspan=1 > Carriage type </th><th colspan=1 rowspan=1 > Years active </th></tr>
<tr> <td colspan=1 rowspan=1 > Way </td><td class="highlighted"  colspan=1 rowspan=1 > 4 </td><td class="highlighted"  colspan=1 rowspan=1 > 12-inch (305 mm) mortar M1890 </td><td colspan=1 rowspan=1 > barbette M1896 </td><td colspan=1 rowspan=1 > 1910-1942 </td></tr>
<tr> <td colspan=1 rowspan=1 > Geary </td><td class="highlighted"  colspan=1 rowspan=1 > 8 </td><td class="highlighted"  colspan=1 rowspan=1 > 4 12-inch (305 mm) mortar M1890, 4 12-inch (305 mm) mortar M1908 </td><td colspan=1 rowspan=1 > barbette M1896, M1908 </td><td colspan=1 rowspan=1 > 1910-1942 </td></tr>
<tr> <td colspan=1 rowspan=1 > Cheney </td><td colspan=1 rowspan=1 > 2 </td><td class="highlighted"  colspan=1 rowspan=1 > 12-inch (305 mm) gun M1895 </td><td colspan=1 rowspan=1 > disappearing M1901 </td><td colspan=1 rowspan=1 > 1910-1942 </td></tr>
<tr> <td colspan=1 rowspan=1 > Wheeler </td><td colspan=1 rowspan=1 > 2 </td><td class="highlighted"  colspan=1 rowspan=1 > 12-inch (305 mm) gun M1895 </td><td colspan=1 rowspan=1 > disappearing M1901 </td><td colspan=1 rowspan=1 > 1910-1942 </td></tr>
<tr> <td colspan=1 rowspan=1 > Crockett </td><td colspan=1 rowspan=1 > 2 </td><td class="highlighted"  colspan=1 rowspan=1 > 12-inch (305 mm) gun M1895 </td><td colspan=1 rowspan=1 > disappearing M1901 </td><td colspan=1 rowspan=1 > 1910-1942 </td></tr>
<tr> <td colspan=1 rowspan=1 > Grubbs </td><td colspan=1 rowspan=1 > 2 </td><td class="highlighted"  colspan=1 rowspan=1 > 10-inch (254 mm) gun M1895 </td><td colspan=1 rowspan=1 > disappearing M1901 </td><td colspan=1 rowspan=1 > 1910-1942 </td></tr>
<tr> <td colspan=1 rowspan=1 > Morrison </td><td class="highlighted"  colspan=1 rowspan=1 > 2 </td><td class="highlighted"  colspan=1 rowspan=1 > 6-inch (152 mm) gun M1905 </td><td colspan=1 rowspan=1 > disappearing M1905 </td><td colspan=1 rowspan=1 > 1910-1942 </td></tr>
<tr> <td colspan=1 rowspan=1 > Ramsey </td><td class="highlighted"  colspan=1 rowspan=1 > 3 </td><td class="highlighted"  colspan=1 rowspan=1 > 6-inch (152 mm) gun M1905 </td><td colspan=1 rowspan=1 > disappearing M1905 </td><td colspan=1 rowspan=1 > 1911-1942 </td></tr>
<tr> <td colspan=1 rowspan=1 > James </td><td colspan=1 rowspan=1 > 4 </td><td colspan=1 rowspan=1 > 3-inch (76 mm) gun M1903 </td><td colspan=1 rowspan=1 > pedestal M1903 </td><td colspan=1 rowspan=1 > 1910-1942 </td></tr>
</table>
Question:
What type of guns are on Fort Mills?
Answer:
Twelve 12-inch (305 mm) mortars, 12-inch (305 mm) guns, 10-inch (254 mm) guns, and five 6-inch (152 mm) guns are on Fort Mills.