← Forming Patterns session list
A Consistent Rule: Filename Convention
L1Here are four sets of filenames from the team shared drive. Each claims to follow the rule 'year-month(two digits)_projectname(lowercase)_v versionnumber.' A: 2026-01_apollo_v1 / 2026-02_apollo_v2 / 2026-03_Apollo_v3 / 2026-04_apollo_v4 B: 2026-01_apollo_v1 / 2026-02_apollo_v2 / 2026-03_apollo_v3 / 2026-04_apollo_v4 C: 2026-01_apollo_v1 / 2026-02_apollo_v2 / 2026-03_apollo_3 / 2026-04_apollo_v4 D: 2026-01_apollo_v1 / 2026-02_apollo_v2 / 2026-3_apollo_v3 / 2026-04_apollo_v4
Choose the set where the rule is kept perfectly across all four files. The rule violations are hidden inconspicuously, exactly one character at a time.