Conversation so far:
what was the lionel conacher article about football?
CANNOTANSWER.
did he play football?
Rugby football was the first sport Conacher played.
what team did he play for?
Capitals.
did they win?
won the city championship each year.
how long did he play for them?
He played four seasons with the team between 1912 and 1915.
why did he leave?
CANNOTANSWER.
is there any significant thing that is interesting in the article?
Named captain in 1922, Conacher led the Argonauts to another undefeated season in IRFU play.

Question: How long did he play for the Argonauts?
Self-contained rewrite: How long did Lionel Conacher play for the Argonauts?