When a task is a subtask the context field will contain the text name of the task and the text name of its summary task .

u5982u679cu67d0u4e2au4efbu52a1u662f u5b50 u4efbu52a1uff0cu5219u4e0au4e0bu6587u5b57u6bb5u5c06u5305u542bu8be5u4efbu52a1u53cau5176u6458u8981u4efbu52a1u7684u6587u672c u540du79f0u3002