function getWords() {
    $query = new EntityFieldQuery();
    $query->entityCondition('entity_type', 'node', '=')
            ->propertyCondition('status', 1, '=')
            ->propertyCondition('type', 'wall_of_words', '=');
    $result = $query->execute();
    return node_load_multiple(array_keys($result['node']));

$query = new EntityFieldQuery();
$query->entityCondition('entity_type', 'node', '=')
  ->propertyCondition('status', 1, '=')
  ->propertyCondition('type', 'wall_of_words', '=');
$result = $query->execute();

$nodes = $result['node'];

// Get all fields attached to a given node type
$fields = field_info_instances('node', 'wall_of_words');

// Get id of body field
$field_id = $fields['body']['field_id'];

// Attach a field of selected id only to get value for it
field_attach_load('node', $nodes, FIELD_LOAD_CURRENT, array('field_id' => $field_id));

foreach ($nodes AS $nid => $node) {
  print $node->body['und']['value'];
}

$result = db_select('node', 'n')
  ->fields('n', array('title', 'body'))
  ->condition('type', 'wall_of_words' ,'=')
  ->condition('status', 1 ,'=')
  ->execute()
  ->fetchAssoc();