oracle - SQL Developer "missing left parenthesis" -

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can please me? trying make table coursework have problem foreign keys , don't know why...

i error, when try , create table: "missing left parenthesis"

create table avatar  ( avatar_id number(3) constraint pk_avatar primary key, avatarname varchar(255), dob number(12), gender varchar(1), strength number(12), weapon varchar(255), species varchar(255), cost numbr(20), player_id number(3), foreign key references player(player_id), motheravatar_id number(3), foreign key references motheravatar(motheravatar_id), fatheravatar_id number(3), foreign key references fatheravatar(fatheravatar_id) );

try this

create table avatar  ( avatar_id number(3) constraint pk_avatar primary key, avatarname varchar(255), dob number(12), gender varchar(1), strength number(12), weapon varchar(255), species varchar(255), cost number(20), player_id number(3), constraint fk_playerid foreign key (player_id) references player(player_id), motheravatar_id number(3), constraint fk_motheravatar_id foreign key (motheravatar_id) references motheravatar(motheravatar_id), fatheravatar_id number(3),constraint fk_fatheravatar_id foreign key (fatheravatar_id) references fatheravatar(fatheravatar_id) );

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