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

The current time is July 26th 2014, 01:20:17

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

foot
is the second parameter of
63 feet

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

63
is the first parameter of
63 feet

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

21
is the product of
1/3 and 63

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

length
is the class of the parametered object
63 feet

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

21 yards
is the parametered object corresponding to
length and 21 and yard

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

Fact 1:
21 yards
is equivalent to
63 feet

Fact 1
is true at
July 26th 2014, 01:20:17

Fact 1:
yard
is the unit used in
21 yards