Assertion: snorkel's breathing tube | /r/HasProperty | obturator
Facets:
Source sentences:
text: Divers - A breathing device for divers that includes a breathing tube exhibiting an end having an inclined opening, an obturator that is mobile between an open position and a closed position of the opening of the end, a float that activates the obturator, a first articulator that communicates the obturator to the tube, a second articulator that communicates the float to the tube.