Simple categories matching catholic:

• holiday,
• festival,
• thing,
• group,
• version,
• information,
• sacrament,
• object,
• doctrine,
• bible,
• ceremony,
• education,
• activity,
• ritual,
• material,
• celebration,
• publication,
• belief,
• medal,
• edifice,
• article,
• people,
• practice,
• tradition,
• devotion,
• terms,
• subject,
• item,
• movement,
• worship,
• rite,

Members with property catholic:

• chapel,
• christmas,
• lamp,
• mass,
• baptism,
• funeral,
• mass_book,
• first_communion,
• halloween,
• confession,
• incarnation,
• easter,
• book,
• bible,
• bible_study,
• dancing,
• communion,
• decoration,
• confirmation,
• cathedral,
• silver,
• eucharist_mass,
• statue,
• auricular_confession,
• angel,
• jerusalem_bible,
• priesthood,
• priest,
• celibacy,
• prayer_card,
• transubstantiation,
• wedding,
• prayer,
• use,
• novena,
• service,
• pageantry,
• liberation,
• cd,
• play,
• idea,
• formal_worship,
• priestly_vestment,
• church,
• ordination,
• eucharistic_adoration,
• faith,
• apologetics,
• eucharist,
• selling_indulgence,
• crucifix,
• ritualism,
• pilgrimage,
• sacred_vessel,
• retreat,
• envoy_magazine,
• liturgy,
• service_project,
• hope,
• saint_medal,
• ignatius_bible,
• benediction,
• bible_reading,
• icon,
• incense_burner,
• sign,
• fasting,
• virgin-mary_devotion,
• rosary,
• saint_life,
• indulgence,
• sacrament,
• miraculous_medal,
• altar_candle,
• monastery,
• role,
• marriage,
• epiphany,
• vestment,
• matrimony,
• saint,
• real_presence,