Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_27 (buechel_ VARCHAR, _manhart_spelling__pronunciation_ VARCHAR, dakota_mission VARCHAR, deloria_ VARCHAR, _boas VARCHAR)
### Question:
Deloria & Boas of ų, and a Dakota Mission of un had what Buechel & Manhart spelling (pronunciation)?
### Answer:
SELECT buechel_ & _manhart_spelling__pronunciation_ FROM table_name_27 WHERE deloria_ & _boas = "ų" AND dakota_mission = "un"