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

The current time is August 27th 2014, 12:53:50

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

cubic yard
is the second parameter of
17.79 cubic yards

I know from locally stored knowledge that:

Fact 1:
27
is the multiplier that converts
cubic yard and cubic foot
([fact: ["644333120@trueknowledge.com"]])

Fact 1
is true for
October 26th 2009, 15:39:21 onwards
([fact: ["644333132@trueknowledge.com"]])

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

Fact 1
is true at
August 27th 2014, 12:53:50

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

17.79
is the first parameter of
17.79 cubic yards

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

480.33
is the product of
27 and 17.79

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

volume
is the class of the parametered object
17.79 cubic yards

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

480.33 cubic feet
is the parametered object corresponding to
volume and 480.33 and cubic foot

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

Fact 2:
480.33 cubic feet
is equivalent to
17.79 cubic yards

Fact 2
is true at
August 27th 2014, 12:53:50

Fact 2:
cubic foot
is the unit used in
480.33 cubic feet