Output file prob

[Savage]

I'm making for fun a simple program which format a input file.Input file sustain of
person name,lastname and date of birth.Output file si supposed to be forammted as following:

NAME LASTNAME DATE OF BIRTH

And i finished it but there is little prob: it don't output date of birth!

I thinkt about the prob and can't figure out why is that happening.

To output data i used function: void output(void),i have also created a struct:

typedef struct person{
                                           char lastname[20];
                                           char firstname[20];
                                           char dob[10];
                               }Tperson;

And here is a problem:

Tperson person;
 
while((!feof(data))&&(fgets(string,80,data)!=NULL))
{
     i=0;
     j=0;
    /*part with NAME and LAST name is working just fine so I don't think that   
      this part is necsasary.*/
     while(string[i]!=' '&&string[i]!='\t'&&string[i]!='\n')
     {
           temporary[j]=string[i];
           i++;
           j++;
      }
      temporary[j]='\0';
      strcpy(person.dob,temporary);
      fprintf(out,"\n %10s  %10s  %
      6s  ",person.firstname,person.lastname,person.dob);
 
}

Did anyone noticed where did I went wrong??

Savage