I know from locally stored knowledge that:

38°54'03"N
is the latitude of
Vienna
([fact: ["161716185@trueknowledge.com"]])

47°21'27"N
is the latitude of
Georgetown, Washington
([fact: ["11023632@trueknowledge.com"]])

77°15'56"W
is the longitude of
Vienna
([fact: ["161716189@trueknowledge.com"]])

121°58'25"W
is the longitude of
Georgetown, Washington
([fact: ["11023633@trueknowledge.com"]])

By calculation (generator: ["distance_between3@trueknowledge.com"]) I know that:

3,691.39461813 kilometers
is the distance between
Vienna and Georgetown, Washington

By calculation (generator: ["second_parameter@trueknowledge.com"]) I know that:

kilometer
is the second parameter of
3,691.39461813 kilometers

By calculation (generator: ["now@trueknowledge.com"]) I know that:

The current time is April 21st 2014, 03:19:52

By calculation (generator: ["first_parameter@trueknowledge.com"]) I know that:

3,691.39461813
is the first parameter of
3,691.39461813 kilometers

By calculation (generator: ["product@trueknowledge.com"]) I know that:

2,293.73197592181
is the product of
0.621372736649807 and 3,691.39461813

By calculation (generator: ["class_parametered_object@trueknowledge.com"]) I know that:

length
is the class of the parametered object
3,691.39461813 kilometers

By calculation (generator: ["parametered_object_corresponding_to@trueknowledge.com"]) I know that:

2,293.73197592181 miles
is the parametered object corresponding to
length and 2,293.73197592181 and mile

By calculation (generator: ["equivalent_to6@trueknowledge.com"]) I know that:

Fact 1:
2,293.73197592181 miles
is equivalent to
3,691.39461813 kilometers

Fact 1
is true at
April 21st 2014, 03:19:52

Fact 1:
mile
is the unit used in
2,293.73197592181 miles