How to Answer a Negative Question

Middle negation and affirmation: Swedish(3) Q: Har Johan kommit?has Johan come‘Has John come?’A: Ja.yesA: Nej.no(4) Q: Har Johan inte kommit?has Johan not come‘Has John not come?’A: #Ja.yes (Cannot mean that he hasn’t come, or that he has come.)A: Nej.no (‘He hasn’t come.’)A: Jo.‘Yes he has come.’