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

The current time is August 20th 2014, 10:53:59

I know from locally stored knowledge that:

Fact 1:
Timothy D. Cook
is the CEO of
Apple
([fact: ["2435737710@trueknowledge.com"]])

Fact 1
is true for
December 12th 2011, 00:00:00 onwards
([fact: ["2435737714@trueknowledge.com"]])

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

Fact 1
is true at
August 20th 2014, 10:53:59

I know from locally stored knowledge that:

October 28th 1955
is the birthdate of
Bill Gates
([fact: ["19249342@trueknowledge.com"]])

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

Fact 2:
58 years, 9 months and 23 days old
is the age of
Bill Gates

Fact 2
is true at
August 20th 2014, 10:53:59

Fact 2:
58 years, 9 months and 23 days old
is a
age

Fact 2:
58 years, 9 months and 23 days old
applies to
Bill Gates

Fact 2
is true at
August 20th 2014, 10:53:59

I know from locally stored knowledge that:

November 1960
is the birthdate of
Timothy D. Cook
([fact: ["748849864@trueknowledge.com"]])

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

Fact 2:
53 years and 9 months old
is the age of
Timothy D. Cook

Fact 2
is true at
August 20th 2014, 10:53:59

Fact 2:
53 years and 9 months old
is a
age

Fact 2:
53 years and 9 months old
applies to
Timothy D. Cook

Fact 2
is true at
August 20th 2014, 10:53:59

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

58 years, 9 months and 23 days
is greater than
53 years and 9 months

Therefore (generator: ["length_time_greater_than@trueknowledge.com"]):

58 years, 9 months and 23 days
is not less than
53 years and 9 months

58 years, 9 months and 23 days
is not the same as
53 years and 9 months

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

58 years, 9 months and 23 days old
is greater than
53 years and 9 months old

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

Fact 6:
Bill Gates
is older than
Timothy D. Cook

By calculation (generator: ["perm5@trueknowledge.com"]) I know that:

Fact 6
is true for
all time

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

Fact 6
is true at
August 20th 2014, 10:53:59

I know from locally stored knowledge that:

permanent
applies to
is older than
([fact: ["1156406@trueknowledge.com"]])