I know from locally stored knowledge that:

June 7th 1958
is the birthdate of
Prince
([fact: ["105707303@trueknowledge.com"]])

is the same as or a more accurate version of
is a more general form of
is a more accurate version of
([fact: ["1154455658@trueknowledge.com"]])

permanent
applies to
is the same as or a more accurate version of
([fact: ["1154274674@trueknowledge.com"]])

By calculation (generator: ["more_accurate_version5@trueknowledge.com"]) I know that:

June 7th 1958
is a more accurate version of
1958

June 7th 1958
is a more accurate version of
June 1958

By calculation (generator: ["moregeneral4@trueknowledge.com"]) I know that:

June 7th 1958
is the same as or a more accurate version of
1958

By calculation (generator: ["strictequal1@trueknowledge.com"]) I know that:

1958
is strictly equal to
1958

By calculation (generator: ["regex2@trueknowledge.com"]) I know that:

"1958"
is a string that contains the regular expression
"^([0-9-]+)"

"1958"
is the substring of the string and regular expression at index
"1958", "^([0-9-]+)" and 1

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

1958
is the year component of
1958

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

1958
is a
calendar year