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

The current time is April 20th 2014, 01:00:03

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

pound
is the second parameter of
1,600 pounds

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

1,600
is the first parameter of
1,600 pounds

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

4/5
is the product of
1/2000 and 1,600

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

mass
is the class of the parametered object
1,600 pounds

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

4/5 short tons
is the parametered object corresponding to
mass and 4/5 and short ton

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

Fact 1:
4/5 short tons
is equivalent to
1,600 pounds

Fact 1
is true at
April 20th 2014, 01:00:03

Fact 1:
short ton
is the unit used in
4/5 short tons