What is the an-stem for the word which has an ö-stems of siangar and an u-stem ending of syni?
CREATE TABLE table_name_18 (masculine_an_stems VARCHAR, feminine_ō_stems VARCHAR, masculine_u_stems VARCHAR)
SELECT masculine_an_stems FROM table_name_18 WHERE feminine_ō_stems = "siangar" AND masculine_u_stems = "syni"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_18 (masculine_an_stems VARCHAR, feminine_ō_stems VARCHAR, masculine_u_stems VARCHAR) Question: What is the an-stem for the word which has an ö-stems of siangar and an u-stem ending of syni? [/INST] SELECT masculine_an_stems FROM table_name_18 WHERE feminine_ō_stems = "siangar" AND masculine_u_stems = "syni" </s>