\item \self Consider the following declarative sentences:

\textit{"Every person who has the same parents as John Doe and is different from John Doe himself is a sibling of John Doe."}

Model this sentence with predicate logic, as detailed as possible. Clearly indicate the intended meaning of all function, predicate, and constant symbols that you use.\\
Also, model the same sentence in propositional logic, as detailed as possible. Clearly indicate the intended meaning of each propositional variable you use.
