Ok, see the definition of investment
[uncountable] the act of investing money in something
to encourage foreign investment
investment in something This country needs investment in education.
See the example "This country needs investment in education.",
my question is:
can we change "We have an investment in education" to "We have an investment that is in education"?
or "This is the book for you" to "This is the book that is for you"
or "I have an investment of 5000 USD" to "I have an investment that is of 5000 USD"
or "We met on a flight from London to Paris." to "We met on the flight that is from London to Paris"
and many more examples