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Due to the capacity of pan-tilt-zoom -LRB- PTZ -RRB- cameras to simultaneously cover a panoramic area and maintain high resolution imagery , researches in automated surveillance systems with multiple PTZ cameras have become increasingly important .
 pan-tilt-zoom -LRB- PTZ -RRB- cameras, panoramic area; pan-tilt-zoom -LRB- PTZ -RRB- cameras, high resolution imagery; PTZ cameras, automated surveillance systems
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: conjunction, feature of, hyponym of, used for, part of, compare, evaluate for 
Text: {0} 
Answer:
 pan-tilt-zoom -LRB- PTZ -RRB- cameras, panoramic area; pan-tilt-zoom -LRB- PTZ -RRB- cameras, high resolution imagery; PTZ cameras, automated surveillance systems