Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Petra' has mentioned 'Incense' in the following places:
Occurrence Sentence Text Source
[6] The Nabataeans were nomadic Arabs who invested in Petra's proximity to the incense trade routes by establishing it as a major regional trading hub.
Situated between the Red Sea and the Dead Sea and inhabited since prehistoric times, the rock-cut capital city of the Nabateans, became during Hellenistic and Roman times a major caravan centre for the incense of Arabia, the silks of China and the spices of India, a crossroads between Arabia, Egypt and Syria-Phoenicia.