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

The current time is April 19th 2014, 14:36:17

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

miles per hour
is the second parameter of
259 miles per hour

I know from locally stored knowledge that:

Fact 1:
1.609344
is the multiplier that converts
miles per hour and kilometres per hour
([fact: ["135583524@trueknowledge.com"]])

Fact 1
is true for
all time
([fact: ["1050411410@trueknowledge.com"]])

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

Fact 1
is true at
April 19th 2014, 14:36:17

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

259
is the first parameter of
259 miles per hour

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

416.820096
is the product of
1.609344 and 259

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

speed
is the class of the parametered object
259 miles per hour

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

416.820096 kilometres per hour
is the parametered object corresponding to
speed and 416.820096 and kilometres per hour

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

Fact 2:
416.820096 kilometres per hour
is equivalent to
259 miles per hour

Fact 2
is true at
April 19th 2014, 14:36:17

Fact 2:
kilometres per hour
is the unit used in
416.820096 kilometres per hour