James attends the conference but not in person.
All students who attend in person have registered for the conference.  Students either attend the conference in person or remotely.  No students from China attend the conference remotely.  James attends the conference but he does not attend the conference remotely. Jack attends the conference and he is a student from China.
∀x (Attend(x) → Registered(x)) ∀x (Attend(x) → InPerson(x) ⊕ Remotely(x)) ∀x ((Attend(x) ∧ China(x)) → ¬Remotely(x)) Attend(james) ∧ ¬Remotely(james) China(jack) ∧ Attend(jack)