I know from locally stored knowledge that:

38°21'13"N
is the latitude of
Napa County, CA
([fact: ["161621837@trueknowledge.com"]])

38°14'44"N
is the latitude of
Petaluma, California
([fact: ["372905019@trueknowledge.com"]])

122°19'55"W
is the longitude of
Napa County, CA
([fact: ["161621853@trueknowledge.com"]])

122°37'51"W
is the longitude of
Petaluma, California
([fact: ["372905023@trueknowledge.com"]])

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

28.7005523204 kilometers
is the distance between
Napa County, CA and Petaluma, California

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

kilometer
is the second parameter of
28.7005523204 kilometers

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

The current time is April 16th 2014, 07:36:29

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

28.7005523204
is the first parameter of
28.7005523204 kilometers

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

17.8337407386879
is the product of
0.621372736649807 and 28.7005523204

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

length
is the class of the parametered object
28.7005523204 kilometers

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

17.8337407386879 miles
is the parametered object corresponding to
length and 17.8337407386879 and mile

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

Fact 1:
17.8337407386879 miles
is equivalent to
28.7005523204 kilometers

Fact 1
is true at
April 16th 2014, 07:36:29

Fact 1:
mile
is the unit used in
17.8337407386879 miles