The Playstation EyeToy is compatible with the Playstation 2.
The PlayStation EyeToy is a camera accessory for the Playstation 2.  The PlayStation Eye is a camera accessory for the Playstation 3. The Playstation Camera is a camera accessory for the Playstation 4 and the Playstation 5. Camera accessory for the system is compatible with that system Only the Playstation Camera is compatible with more than one system.
Accessory(pseyetoy, ps2) Accessory(pseye, ps3) Accessory(pscamera, ps4) ∧ Accessory(pscamera, ps5) ∀x ∀y (Accessory(x, y) → Compatible(x, y)) ¬Compatible(pseye, ps2) ∧ ¬Compatible(pseye, ps4)∧¬Compatible(pseye, ps5)∧¬Compatible(pseyetoy, ps3)∧¬Compatible(pseyetoy, ps4)∧¬Compatible(pseyetoy, ps5)