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

The current time is April 21st 2014, 04:57:37

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

century
is the second parameter of
9 centuries

I know from locally stored knowledge that:

Fact 1:
100
is the multiplier that converts
century and year
([fact: ["130983769@trueknowledge.com"]])

Fact 1
is true for
all time
([fact: ["1050411346@trueknowledge.com"]])

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

Fact 1
is true at
April 21st 2014, 04:57:37

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

9
is the first parameter of
9 centuries

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

900
is the product of
100 and 9

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

length of time
is the class of the parametered object
9 centuries

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

900 years
is the parametered object corresponding to
length of time and 900 and year

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

Fact 2:
900 years
is equivalent to
9 centuries

Fact 2
is true at
April 21st 2014, 04:57:37

Fact 2:
year
is the unit used in
900 years