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

The current time is April 18th 2014, 19:30:46

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

kilometres per hour
is the second parameter of
580 kilometres per hour

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

580
is the first parameter of
580 kilometres per hour

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

360.395291497654
is the product of
0.621371192237334 and 580

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

speed
is the class of the parametered object
580 kilometres per hour

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

360.395291497654 miles per hour
is the parametered object corresponding to
speed and 360.395291497654 and miles per hour

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

Fact 1:
360.395291497654 miles per hour
is equivalent to
580 kilometres per hour

Fact 1
is true at
April 18th 2014, 19:30:46

Fact 1:
miles per hour
is the unit used in
360.395291497654 miles per hour