Table: old_swedish_nouns
Columns: masculine_a_stems
masculine_u_stems
feminine_stems
neuter_a_stems
masculine_an_stems
feminine_n_stems

Question: What is the an-stem for the word which has an ö-stems of siangar and an u-stem ending of syni?
SQL: SELECT "masculine_an_stems" FROM old_swedish_nouns WHERE "feminine_stems" = 'siangar' AND "masculine_u_stems" = 'syni'

Question: What ending does siangu get for ön?
SQL: SELECT "feminine_n_stems" FROM old_swedish_nouns WHERE "feminine_stems" = 'siangu'

Question: What is the u form of the word with a neuter form of skip and a masculine a-ending of fisker?
SQL: SELECT "masculine_u_stems" FROM old_swedish_nouns WHERE "neuter_a_stems" = 'skip' AND "masculine_a_stems" = 'fisker'

Question: What is the masculine an form for the word with a feminine ö ending of siangar and a masculine u ending of sunar?
SQL: SELECT "masculine_an_stems" FROM old_swedish_nouns WHERE "feminine_stems" = 'siangar' AND "masculine_u_stems" = 'sunar'

Question: What is the masculine u form for the old Swedish word with a neuter a form of skipum?
SQL: SELECT "masculine_u_stems" FROM old_swedish_nouns WHERE "neuter_a_stems" = 'skipum'