Table: uci_men_u23_tt
Columns: rank
nation
gold
silver
bronze
total

Question: What is the lowest number of bronze medals received by a nation with fewer than 0 gold medals?
SQL: SELECT MIN("bronze") FROM uci_men_u23_tt WHERE "gold" < 0

Question: What is the lowest number of silver medals for a nation with fewer than 1 total medals?
SQL: SELECT MIN("silver") FROM uci_men_u23_tt WHERE "total" < 1