Database Normilzation to 3NF -


i trying complete normalization following erd ![1]: http://i42.tinypic.com/fng2a9.jpg

i have completed 1nf but, stuck on normalizing further. structures below not considered 3nf?

port (portid,name,country,population,passport_req,dockingfee)

port_attractions (attractionid, portid, attractiondescription)

passenger (passnum,name, nationality,age)

passenger_address (passnum,street,city,state,zip)

ship (shipnum, name,weight, yrbuilt, capacity)

sailor(sailorid, fname, lname, yearsservice, nationality)

cruise (serialnumber, sailingmonth, sailingday, sailingyear, returnmonth, returnday, returnyear, departureport)


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