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

The current time is April 25th 2014, 02:00:55

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

stone
is the second parameter of
11.94 stone

I know from locally stored knowledge that:

Fact 1:
14
is the multiplier that converts
stone and pound
([fact: ["139867408@trueknowledge.com"]])

Fact 1
is true for
October 8th 2008, 20:08 onwards
([fact: ["1058551038@trueknowledge.com"]])

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

Fact 1
is true at
April 25th 2014, 02:00:55

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

11.94
is the first parameter of
11.94 stone

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

167.16
is the product of
14 and 11.94

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

mass
is the class of the parametered object
11.94 stone

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

167.16 pounds
is the parametered object corresponding to
mass and 167.16 and pound

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

Fact 2:
167.16 pounds
is equivalent to
11.94 stone

Fact 2
is true at
April 25th 2014, 02:00:55

Fact 2:
pound
is the unit used in
167.16 pounds