With no explanation, label text_A→text_B with either "DON'T KNOW", "NO" or "YES".
text_A: The House of Commons currently has 338 members elected in single-member districts in a majority voting system (first past the post), meaning that members must attain a majority (50 percent plus one), or a runoff of the top two candidates occurs. The electoral districts are also known as ridings.
text_B: If the leading candidate has 33% of the vote, do they win the election?
NO.