atomic bombings of Hiroshima and Nagasaki

Deductions

• dyad is for example atomic bombings of Hiroshima and Nagasaki ⇐ (atomic bombings of Hiroshima and Nagasaki is a dyad), (is a is inverse of is for example)
• collective entity is for example atomic bombings of Hiroshima and Nagasaki ⇐ (atomic bombings of Hiroshima and Nagasaki is a collective entity), (is a is inverse of is for example)
• atomic bombings of Hiroshima and Nagasaki is a collective entity ⇐ (dyad is subclass of collective entity), (atomic bombings of Hiroshima and Nagasaki is a dyad)