} else {
             if ($cmd == "lq") {
                 $responseMessage = process_list_queries($con, $uiid, $ref, $content);
                 // ref for groupId, content for queryId
             } else {
                 if ($cmd == "la") {
                     $responseMessage = process_list_answers($con, $uiid, $ref, $content, 0);
                 } else {
                     if ($cmd == "next") {
                         $responseMessage = process_list_next($con, $uiid);
                     } else {
                         if ($cmd == "fg") {
                             $responseMessage = process_following_group($con, $uiid, $ref);
                         } else {
                             if ($cmd == "fq") {
                                 $responseMessage = process_following_query($con, $uiid, $ref);
                             } else {
                                 if ($cmd == "cg") {
                                     $responseMessage = process_create_group($con, $uiid, $ref, $content);
                                 }
                             }
                         }
                     }
                 }
             }
         }
     }
 }
 dbclose($con);
 /*
 $con = dbopen();
 } else {
     if (startsWith($user_body, "lq:")) {
         //echo "---lq\n";
         $responseMessage = process_list_queries($con, $user_body, $uiid);
     } else {
         if (startsWith($user_body, "la:")) {
             $responseMessage = process_list_answers($con, $user_body, $uiid);
         } else {
             if (startsWith($user_body, "next:")) {
                 $responseMessage = process_list_next($con, $user_body, $uiid);
             } else {
                 if (startsWith($user_body, "fg:")) {
                     $responseMessage = process_following_group($con, $user_body, $uiid);
                 } else {
                     if (startsWith($user_body, "fq:")) {
                         $responseMessage = process_following_query($con, $user_body, $uiid);
                     } else {
                         if (startsWith($user_body, "create:")) {
                             $groupName = trim(substr($user_body, 7));
                             $query = "INSERT INTO bpgroups ( `name`, ownerid ) VALUES ('" . $groupName . "','" . $uiid . "' )";
                             if (!mysqli_query($con, $query)) {
                                 //echo("Error description: " . mysqli_error($con));
                                 $responseMessage = "group '" . $groupName . "' create error: " . mysqli_error($con);
                             } else {
                                 $responseMessage = "group '" . $groupName . "' created.";
                             }
                             $query = "";
                         } else {
                             $responseMessage = "Please input any of the following comments such as 'group:', 'query:', 'create:' ";
                         }
                     }