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

The current time is September 1st 2014, 19:23:54

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

Knot
is the second parameter of
275 knots

I know from locally stored knowledge that:

Fact 1:
1.151
is the multiplier that converts
Knot and mile per hour
([fact: ["797396600@trueknowledge.com"]])

Fact 1
is true for
December 6th 2010, 14:14:54 onwards
([fact: ["1050373946@trueknowledge.com"]])

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

Fact 1
is true at
September 1st 2014, 19:23:54

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

275
is the first parameter of
275 knots

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

316.525
is the product of
1.151 and 275

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

speed
is the class of the parametered object
275 knots

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

316.525 miles per hour
is the parametered object corresponding to
speed and 316.525 and mile per hour

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

Fact 2:
316.525 miles per hour
is equivalent to
275 knots

Fact 2
is true at
September 1st 2014, 19:23:54

Fact 2:
mile per hour
is the unit used in
316.525 miles per hour