One approach suggested to ensure privacy is the small result rejection, in which the system rejects (returns no result from) any query, the result of which is derived from a small number, for example, five, of records. Show how to obtain sensitive data by using only queries derived from six records

What will be an ideal response?

There
are
many
possible
formulations
for
this
answer.
The
principle
of
the
answer
should
resemble
extracting
information
about
a
single
record
by
executing
different
queries
that
only
have
that
single
record
in
common
among
the
results.