| http://www.w3.org/ns/prov#value | - A container assembly comprising: a container and a cap; the container including a base, and a neck for engagement with the cap, an end of the neck defining a container mouth; the neck being substantially symmetrical about a central vertical axis, the neck forming a flexible lip proximate the mouth, with an upper generally frusto-conical exterior sealing surface, the lip having a lower generally fr
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