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:
List of awards and nominations received by Nicki Minaj
Table title:
Grammy Awards
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Year </th><th colspan=1 rowspan=1 > Nominee / work </th><th colspan=1 rowspan=1 > Award </th><th colspan=1 rowspan=1 > Result </th></tr>
<tr> <td colspan=1 rowspan=1 > 2011 </td><td colspan=1 rowspan=1 > "My Chick Bad" (with Ludacris) </td><td colspan=1 rowspan=1 > Best Rap Performance by a Duo or Group </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=4 > 2012 </td><td colspan=1 rowspan=1 > Herself </td><td colspan=1 rowspan=1 > Best New Artist </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=1 > "Moment 4 Life" (featuring Drake) </td><td colspan=1 rowspan=1 > Best Rap Performance </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=1 > Pink Friday </td><td colspan=1 rowspan=1 > Best Rap Album </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=1 > Loud (as featured artist) </td><td colspan=1 rowspan=1 > Album of the Year </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=2 > 2015 </td><td class="highlighted"  colspan=1 rowspan=1 > "Anaconda" </td><td class="highlighted"  colspan=1 rowspan=1 > Best Rap Song </td><td class="highlighted"  colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > "Bang Bang" (with Jessie J and Ariana Grande) </td><td class="highlighted"  colspan=1 rowspan=1 > Best Pop Duo/Group Performance </td><td class="highlighted"  colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=3 > 2016 </td><td colspan=1 rowspan=1 > "Only" (featuring Drake, Lil Wayne and Chris Brown) </td><td colspan=1 rowspan=1 > Best Rap/Sung Collaboration </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=1 > "Truffle Butter" (featuring Drake and Lil Wayne) </td><td colspan=1 rowspan=1 > Best Rap Performance </td><td colspan=1 rowspan=1 > Nominated </td></tr>
<tr> <td colspan=1 rowspan=1 > The Pinkprint </td><td colspan=1 rowspan=1 > Best Rap Album </td><td colspan=1 rowspan=1 > Nominated </td></tr>
</table>
Question:
Which two songs did Nicki Minaj receive 2015 Grammy Award nominations for and what categories are the nominations in?
Answer:
In 2015, Minaj received two nominations at the Grammy Awards for Best Rap Song for her single "Anaconda" and Best Pop Duo/Group Performance for her joint single "Bang Bang", with Jessie J and Ariana Grande.