How do I use unique name in passing value to another form?

How do I use this information when importing data. Currently, the entire name goes into the last name field.

Please use this link:
https://www.jotform.com/200364696425054?session={eposta}&isim[first]={isim:first}&isim[last]={isim:last}&eposta={eposta}

Orange = Session URL
Green = Prepopulate URL

Please give it a try and let us know how it goes.