Can anyone help me out with a complicated(for me) syntax.

I have created several types and a table. Code is below.

create type person_type;
/
show errors;

create type person_ref_ntabtype as
table of ref person_type;
/
show errors;

create or replace type project_type as object (
project_id varchar2(10),
project_description varchar2(30),
people person_ref_ntabtype
);
/
show errors;


create or replace type person_type as object (
id varchar2(10),
firstname VARCHAR2(15),
lastname VARCHAR2(15)
);
/
show errors;

create table project of project_type (
primary key (project_id)
)
nested table people store as people_ntab;


create table person of person_type (
primary key (id)
);
INSERT INTO PERSON
VALUES ( person_type('JB234','James', 'Brown'));
INSERT INTO PERSON
VALUES ( person_type('SW123','Sarah', 'White'));
INSERT INTO PERSON
VALUES ( person_type('GB245','George','Black'));
INSERT INTO PERSON
VALUES ( person_type('GH237','Goldy','Horn' ));
INSERT INTO PERSON
VALUES ( person_type('FG246','Fred','Greene'));



insert into project values (
project_type('PM123','Townhouse', person_ref_ntabtype()));
insert into project values (
project_type('PM245','Environmentally Sound home', person_ref_ntabtype()));
insert into project values (
project_type('PM289','Dual House',person_ref_ntabtype()));

update project
set people =
person_ref_ntabtype(
(select ref(s) from person s where id='JB234'),
(select ref(s) from person s where id='SW123'),
(select ref(s) from person s where id='FG246'))
where project_id='PM123';

update project
set people =
person_ref_ntabtype(
(select ref(s) from person s where id='JB234'),
(select ref(s) from person s where id='FG246'))
where project_id='PM245';

update project
set people =
person_ref_ntabtype()
where project_id='PM289';


I now need to be able to access the reference within the nested table called people.
the closes that I can manage is

select p.project_id, p.description, p,people
from project p

I know that I need to deref the nested table, but cannot incorporate the deref syntax into this statement. Can you help?



Thanks in advance