Table: slavic_ear_words
Columns: proto_slavic
russian
ukrainian
belarusian
polish
czech
slovak
slovene
serbo_croatian
bulgarian
macedonian

Question: When gniazdo is polish what is proto-slavic?
SQL: SELECT "proto_slavic" FROM slavic_ear_words WHERE "polish" = 'gniazdo'

Question: When рука / ruka is the serbo-croatian what is the macedonian?
SQL: SELECT "macedonian" FROM slavic_ear_words WHERE "serbo_croatian" = 'рука / ruka'

Question: When риба (ríba) is the macedonian what is the proto-slavic?
SQL: SELECT "proto_slavic" FROM slavic_ear_words WHERE "macedonian" = 'риба (ríba)'

Question: When  гн(иј)ездо / gn(ij)ezdo is the serbo-croatian how many proto-slavics are there?
SQL: SELECT COUNT("proto_slavic") FROM slavic_ear_words WHERE "serbo_croatian" = 'гн(иј)ездо / gn(ij)ezdo'

Question: When  рыба (rýba) is the belarusian how many slovenes are there?
SQL: SELECT COUNT("slovene") FROM slavic_ear_words WHERE "belarusian" = 'рыба (rýba)'

Question: When вуха (vúkha) is the belarusian how many slovaks are there?
SQL: SELECT COUNT("slovak") FROM slavic_ear_words WHERE "belarusian" = 'вуха (vúkha)'