{"id":"day-of-week-trailing-space","text":"`day_of_the_week` returns day names with a trailing space (e.g., `\"Monday \"` not `\"Monday\"`), which is load-bearing for test compatibility with LeetCode's expected output format.","truth_value":"IN","source":"entries/2026/06/06/day-of-the-week-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"day-of-week-trailing-space","truth_value":"IN","reason":"premise"}]}}