Problem with getRecords

Problem with getRecords

Hi, I use the Events table in Zoho CRM, and when I tried to get all the records, the response from zoho is:
- < row no =" 1 " >
  < FL val =" ACTIVITYID " > 413501000000143001 </ FL >
  < FL val =" SMOWNERID " > 413501000000045003 </ FL >
- < FL val =" Event Owner " >
<![CDATA[
Cytlalli Ibañez
  ]]>
  </ FL >
- < FL val =" Subject " >
<![CDATA[
Test daniel
  ]]>
  </ FL >
- < FL val =" Start DateTime " >
<![CDATA[
2011-08-24 14:00:00
  ]]>
  </ FL >
- < FL val =" CONTACTID " >
<![CDATA[
413501000000087011
  ]]>
  </ FL >
- < FL val =" Contact Name " >
<![CDATA[
ROSA CONTRERAS CRUZ
  ]]>
  </ FL >
- < FL val =" RELATEDTOID " >
<![CDATA[
413501000000068019
  ]]>
  </ FL >
- < FL val =" SEMODULE " >
<![CDATA[
Accounts
  ]]>
  </ FL >
- < FL val =" Related To " >
<![CDATA[
Azaleas
  ]]>
  </ FL >
  < FL val =" SMCREATORID " > 413501000000045003 </ FL >
- < FL val =" Created By " >
<![CDATA[
Cytlalli Ibañez
  ]]>
  </ FL >
  < FL val =" MODIFIEDBY " > 413501000000045003 </ FL >
- < FL val =" Modified By " >
<![CDATA[
Cytlalli Ibañez
  ]]>
  </ FL >
- < FL val =" Created Time " >
<![CDATA[
2011-08-24 13:43:36
  ]]>
  </ FL >
- < FL val =" Modified Time " >
<![CDATA[
2011-08-24 13:43:36
  ]]>
  </ FL >
- < FL val =" Send Notification Email " >
<![CDATA[
false
  ]]>
  </ FL >
- < FL val =" End DateTime " >
<![CDATA[
2011-08-24 14:30:00
  ]]>
  </ FL >
  </ row >

But when I tried to get only this columns;
String selectColumns ="Events(RELATEDTOID,Related To,Start DateTime)";
The response is:




  <? xml version="1.0" encoding="UTF-8" ?>
- < response uri =" /crm/private/xml/Events/getRecords " >
- < result >
- < Events >
- < row no =" 1 " >
  < FL val =" ACTIVITYID " > 413501000000143001 </ FL >
- < FL val =" Start DateTime " >
<![CDATA[
2011-08-24 14:00:00
  ]]>
  </ FL >
  </ row >
- < row no =" 2 " >
  < FL val =" ACTIVITYID " > 413501000000101001 </ FL >
- < FL val =" Start DateTime " >
<![CDATA[
2011-08-19 16:30:00
  ]]>
  </ FL >
  </ row >
Please I need your help to retrive those columns data but I dont understand the error.