konā
1. (location) that place, there (near or connected with the person spoken to) - a location word, or locative, which follows immediately after particles such as ki, i, hei and kei or is preceded by a when used as the subject of the sentence.
(Te Kākano Textbook (Ed. 2): 121; Te Pihinga Textbook (Ed. 2): 24;)
Tēnā koe, e kare. Kei konā a Tuihana? / Hello, my friend. Is Tuihana there?