add domain and bucket to question

mqa.py

@@ -73,6 +73,8 @@ class MQA(datasets.GeneratorBasedBuilder):
             "id": datasets.Value("string"),
             "text": datasets.Value("string"),
             "name": datasets.Value("string"),
+            "domain": datasets.Value("string"),
+            "bucket": datasets.Value("string"),
             "answers": [{
                 "text": datasets.Value("string"),
                 "name": datasets.Value("string"),
@@ -87,7 +89,7 @@ class MQA(datasets.GeneratorBasedBuilder):
         }
         domain = {
             "domain": datasets.Value("string"),
-            "pages": [page] 
+            "pages": [page]
         }
         if self.config.level == "question":
             features = question
@@ -136,6 +138,8 @@ class MQA(datasets.GeneratorBasedBuilder):
                     questions = [{
                         "text": default(question, "text"),
                         "name": default(question, "name"),
+                        "domain": page["domain"],
+                        "bucket": page["bucket"],
                         "id": question["hash"],
                         "answers": [{
                             "text": default(answer, "text"),