anchor: Two streets dominate the market in art and antiques, Via Margutta and Via del Babuino and other off-shoots of the Piazza di Spagna (as well as Via Giulia and Via Coronari).
positive: Via Margutta and Via del Babuino, two streets dominate the market in art and antiques.
negative: Via del Babuino and Via Margutto have nothing to do with art or antiques.