A yellow hose extends from one of two off-white vehicles parked behind outstretched caution tape, as several figures gather on the sidewalk.
A yellow hose is extended from one of the two vehicles that is parked near caution tape,as many figures come near the sidewalk.
" Is extended " is a rephrasing of " extends". Something that is behind caution tape is near caution tape, and figures gathering on something implies the figures are coming near that thing.
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