Question: Who finished wiht the silver medal at the competition held in Sofia, Bulgaria?
Sentence (from "John Lindsay (Paralympian)"): At the 2000 Sydney Games, he won a gold medal in the Men's 100 m T53 event, a silver medal as part of the Men's 4x100 m Relay T54 team, and a bronze medal in the Men's 200 m T53 event; he was also part of the Men's 4x400 m Relay T54 team, which was the only one to qualify in its heat, but it did not make it to the finals.
Relevant evidence: No