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

The current time is April 19th 2014, 09:25:42

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

metre
is the second parameter of
15 metres

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

15
is the first parameter of
15 metres

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

49.2125984251968
is the product of
3.28083989501312 and 15

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

length
is the class of the parametered object
15 metres

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

49.2125984251968 feet
is the parametered object corresponding to
length and 49.2125984251968 and foot

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

Fact 1:
49.2125984251968 feet
is equivalent to
15 metres

Fact 1
is true at
April 19th 2014, 09:25:42

Fact 1:
foot
is the unit used in
49.2125984251968 feet