1. けいざいがく   rheology   economics   radiology   archeology, archaeology   Hint Half-n-half Clue   2. こんちゅうがく   radiology   theology   entomology   seismology   Half-n-half Clue   3. いんがかんけいがく、   etiology, aetiology   accountancy   anthropology   telegraphy   Half-n-half Clue   4. ほうしょせんいがく   choreography   seismology   etiology, aetiology   radiology   Half-n-half Clue   5. ちょうるいがく   ornithology   astrology   accountancy   topology   Half-n-half Clue   6. しゃかいがく   calligraphy   sociology   telepathy   economics   Half-n-half Clue   7. ぶようじゅつ   ornithology   etiology, aetiology   choreography   radiology   Half-n-half Clue