Relation Extraction (Slot Filling)
       Relation: 
       educated_at(x,?)
       Entity: x = Turing                   Relation Extraction Model
       Sentence: “Alan 
       Turing graduated 
       from Princeton.”
                                                Answer: Princeton
       Relation Extraction (Slot Filling)
       Relation: 
       educated_at(x,?)
       Entity: x = Turing                   Relation Extraction Model
       Sentence: “Turing 
       was an English 
       mathematician.”
                                                  Answer: 
       Reading Comprehension
                                               Question:
                                               “Where did Turing study?”
      Sentence: “Alan 
      Turing graduated               Reading Comprehension Model
      from Princeton.”
                                           Answer: Princeton
       Relation Extraction via Reading 
       Comprehension
      Relation: 
      educated_at(x,?)
      Entity: x = Turing
      Sentence: “Alan 
      Turing graduated               Reading Comprehension Model
      from Princeton.”
                                           Answer: Princeton
       Relation Extraction via Reading 
       Comprehension
      Relation:                 Querification    Question Template:
      educated_at(x,?)                           “Where did x study?”
      Entity: x = Turing
      Sentence: “Alan 
      Turing graduated                 Reading Comprehension Model
      from Princeton.”
                                             Answer: Princeton