Suppose Dr. Maria Chavez is a leading expert in the field of astrophysics, with a focus on black holes and dark matter. She has conducted groundbreaking research at prestigious observatories around the world and has published widely cited papers in top scientific journals. Dr. Chavez is currently a professor at a major university, where she teaches courses on advanced theoretical physics and supervises graduate students in their research.
Can we infer that "Dr. Maria Chavez has never conducted research on black holes."?