query <xray-query-statement> end
<xray-query-statement> :==
The query will create the following symbols:
$object_exist (<logical>) - true if object exists.
$object_type (<xray-type>) - real, complex, or integer.
$object_used (<logical>) - true if object is # 0.
$object_group (<integer>) - reciprocal space object group id.
$object_gtype (<xray-group-type>) - reciprocal space object group type.
$object_gord (<integer>) - reciprocal space object group order.
The last two are only created for existing reciprocal space objects.