I creating spam rules for my email application

Suppose I have the subject line below

"In the future cars will run without fuel"

I would like to pickup all the words of the phrase and store them in a table,
so that every single word is a record of the table spam_rule1.dbf

In
the
future
cars
will
run
without
fuel

Then I all I need is delete the records that I think are not spam words

Please help me to pickup words from a phase

Moises