diff --git a/models.py b/models.py
index 28e5e25..516aec7 100644
--- a/models.py
+++ b/models.py
@@ -24,6 +24,13 @@ class StudentTopic(Base):
     student = relationship('Student', back_populates='topics')
     topic = relationship('Topic', back_populates='students')
 
+    def __repr__(self):
+        return f'''StudentTopic:
+            student_id: "{self.student_id}"
+            topic_id:   "{self.topic_id}"
+            level:      "{self.level}"
+            date:       "{self.date}"'''
+
 # ---------------------------------------------------------------------------
 # Registered students
 # ---------------------------------------------------------------------------
@@ -61,13 +68,14 @@ class Answer(Base):
     topic = relationship('Topic', back_populates='answers')
 
     def __repr__(self):
-        return '''Question:
+        return f'''Question:
             id:         "{self.id}"
             ref:        "{self.ref}"
             grade:      "{self.grade}"
             starttime:  "{self.starttime}"
             finishtime: "{self.finishtime}"
-            student_id: "{self.student_id}"'''
+            student_id: "{self.student_id}"
+            topic_id:   "{self.topic_id}"'''
 
 # ---------------------------------------------------------------------------
 # Table with student state
@@ -80,5 +88,6 @@ class Topic(Base):
     students = relationship('StudentTopic', back_populates='topic')
     answers = relationship('Answer', back_populates='topic')
 
-    # def __init__(self, id):
-    #     self.id = id
+    def __repr__(self):
+        return f'''Topic:
+            id:         "{self.id}"'''
--
libgit2 0.21.2