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

The current time is July 31st 2014, 23:41:10

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

hectare
is the second parameter of
12.5 hectares

I know from locally stored knowledge that:

Fact 1:
107,639.1041671
is the multiplier that converts
hectare and square foot
([fact: ["644332684@trueknowledge.com"]])

Fact 1
is true for
all time
([fact: ["1050413330@trueknowledge.com"]])

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

Fact 1
is true at
July 31st 2014, 23:41:10

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

12.5
is the first parameter of
12.5 hectares

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

1,345,488.80208875
is the product of
107,639.1041671 and 12.5

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

area
is the class of the parametered object
12.5 hectares

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

1,345,488.80208875 square feet
is the parametered object corresponding to
area and 1,345,488.80208875 and square foot

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

Fact 2:
1,345,488.80208875 square feet
is equivalent to
12.5 hectares

Fact 2
is true at
July 31st 2014, 23:41:10

Fact 2:
square foot
is the unit used in
1,345,488.80208875 square feet