Simple categories matching sad:

• item,
• thing,
• event,
• occasion,
• situation,
• ceremony,

Members with property sad:

• funeral,
• litigation,
• fire,
• death,
• violence,
• old_age,
• hospital_visit,
• persecution,
• slavery,
• pain,
• suffering,
• miscarriage,
• terror,
• stamp,
• love,
• flood,
• accident,
• poor_harvest,
• loneliness,
• tragedy,
• tomato,