Assertion: surf | /r/HasProperty | pioneered by walter h. munk
Facets:
value: at sound laboratory
type: LOCATION
value: at the u. s. navy radio
type: LOCATION
value: in the late 1930s
type: TEMPORAL
Source sentences:
text: Some of the methods used to predict the surf on D-Day were pioneered by Walter H. Munk at the U. S. Navy Radio and Sound Laboratory in the late 1930s.