Assertion: national flag's color | /r/CapableOf | originate with british flag
Facets:
value: at the time
type: TEMPORAL
Source sentences:
text: According to the End of the Oregon Trail Interpretive Center, the colors originated with the British flag, which is called the Union Jack and was a combination of the Scottish cross of St. Andrew (white on blue) and the English cross of St. George (red on white) at the time.