Salesforce API：从“父级”中选择“子级”字段具有特定值的字段

Question

是否可以在子字段具有特定值的地方选择父值？

例如：

Select ContractName
From Contract
Where Contract.Orders.Status = 'Draft'

我得到了错误：

Didn't understand relationship 'Contracts' in field path. If you are attempting to use a custom relationship, be sure to append the '__r' after the custom relationship name. 

但是，即使我将__r添加到Orders中，我也会收到错误消息。