Assertion: european water chestnut | /r/CapableOf | spread throughout new york state
Facets:
value: slowly
type: MANNER
Source sentences:
text: The European water chestnut (Trapa natans), an invasive aquatic plant released inadvertently into waters of the Northeast in the late 1800s, is slowly but inexorably spreading throughout New York State, clogging waterways, lakes and ponds and altering aquatic habitats.