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:
Takashi Nagao
Table title:
International competitions
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Year </th><th colspan=1 rowspan=1 > Competition </th><th colspan=1 rowspan=1 > Venue </th><th colspan=1 rowspan=1 > Position </th><th colspan=1 rowspan=1 > Event </th><th colspan=1 rowspan=1 > Notes </th></tr>
<tr> <td colspan=1 rowspan=2 > 1977 </td><td colspan=1 rowspan=1 > World Cup </td><td colspan=1 rowspan=1 > Düsseldorf, Germany </td><td colspan=1 rowspan=1 > 8th </td><td colspan=1 rowspan=1 > 400 m hurdles </td><td colspan=1 rowspan=1 > 52.10 </td></tr>
<tr> <td colspan=1 rowspan=1 > Pacific Conference Games </td><td colspan=1 rowspan=1 > Canberra, Australia </td><td colspan=1 rowspan=1 > 3rd </td><td colspan=1 rowspan=1 > 400 m hurdles </td><td colspan=1 rowspan=1 > 53.30 </td></tr>
<tr> <td colspan=1 rowspan=2 > 1978 </td><td colspan=1 rowspan=2 > Asian Games </td><td colspan=1 rowspan=2 > Bangkok, Thailand </td><td colspan=1 rowspan=1 > 2nd </td><td colspan=1 rowspan=1 > 400 m hurdles </td><td colspan=1 rowspan=1 > 50.98 </td></tr>
<tr> <td colspan=1 rowspan=1 > 1st </td><td colspan=1 rowspan=1 > 4 × 400 m relay </td><td colspan=1 rowspan=1 > 3:08.3 </td></tr>
<tr> <td colspan=1 rowspan=1 > 1979 </td><td colspan=1 rowspan=1 > Asian Championships </td><td colspan=1 rowspan=1 > Tokyo, Japan </td><td colspan=1 rowspan=1 > 2nd </td><td colspan=1 rowspan=1 > 400 m hurdles </td><td colspan=1 rowspan=1 > 51.53 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=3 > 1981 </td><td colspan=1 rowspan=1 > Asian Championships </td><td colspan=1 rowspan=1 > Tokyo, Japan </td><td colspan=1 rowspan=1 > 1st </td><td colspan=1 rowspan=1 > 400 m hurdles </td><td colspan=1 rowspan=1 > 50.32 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=2 > World Cup </td><td colspan=1 rowspan=2 > Rome, Italy </td><td colspan=1 rowspan=1 > 8th </td><td class="highlighted"  colspan=1 rowspan=1 > 400 m hurdles </td><td colspan=1 rowspan=1 > 51.95 </td></tr>
<tr> <td colspan=1 rowspan=1 > 9th </td><td class="highlighted"  colspan=1 rowspan=1 > 4 × 400 m relay </td><td colspan=1 rowspan=1 > 3:09.93 </td></tr>
<tr> <td colspan=1 rowspan=1 > 1982 </td><td colspan=1 rowspan=1 > Asian Games </td><td colspan=1 rowspan=1 > New Delhi, India </td><td colspan=1 rowspan=1 > 1st </td><td colspan=1 rowspan=1 > 400 m hurdles </td><td colspan=1 rowspan=1 > 50.60 </td></tr>
</table>
Question:
In what events did Takashi Nagao compete in at the 1981 World Cup?
Answer:
Takashi Nagao played the 400 m hurdles and the 4 × 400 m at the 1981 World Cup.