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

The current time is April 23rd 2014, 22:38:58

I know from locally stored knowledge that:

January 17th 1964
is the birthdate of
Michelle Obama
([fact: ["123889983@trueknowledge.com"]])

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

Fact 1:
50 years, 3 months and 6 days old
is the age of
Michelle Obama

Fact 1
is true at
April 23rd 2014, 22:38:58

Fact 1:
50 years, 3 months and 6 days old
is a
age

Fact 1:
50 years, 3 months and 6 days old
applies to
Michelle Obama

Fact 1
is true at
April 23rd 2014, 22:38:58

I know from locally stored knowledge that:

August 4th 1961
is the birthdate of
Barack Obama
([fact: ["18548287@trueknowledge.com"]])

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

Fact 1:
52 years, 8 months and 19 days old
is the age of
Barack Obama

Fact 1
is true at
April 23rd 2014, 22:38:58

Fact 1:
52 years, 8 months and 19 days old
is a
age

Fact 1:
52 years, 8 months and 19 days old
applies to
Barack Obama

Fact 1
is true at
April 23rd 2014, 22:38:58

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

52 years, 8 months and 19 days
is greater than
50 years, 3 months and 6 days

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

52 years, 8 months and 19 days
is not less than
50 years, 3 months and 6 days

52 years, 8 months and 19 days
is not the same as
50 years, 3 months and 6 days

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

52 years, 8 months and 19 days old
is greater than
50 years, 3 months and 6 days old

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

Fact 5:
Michelle Obama
is younger than
Barack Obama

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

Fact 5
is true for
all time

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

Fact 5
is true at
April 23rd 2014, 22:38:58

I know from locally stored knowledge that:

permanent
applies to
is younger than
([fact: ["1156421@trueknowledge.com"]])