Task: Description Logic Reasoning (ontology: Legal/LKIF_Core_Ontology)

Given the following Description Logic expression, determine whether it is satisfiable with respect to the local ontology module. Answer only true or false.

Expression:
∃initial_date_of.(Efficacy_Interval) ⊓ ∀efficacy.(¬(Efficacy_Interval)) ⊓ ∃initial_date_of.(¬(Efficacy_Interval))

True. true
False. false

Answer: true