UNIX Desktop Questions & Answers

i thought about to use the commands : wc and sort cut and mybe more ..
i need to write a bash script that recive a list of varuables
kaka pele ronaldo beckham zidane messi rivaldo gerrard platini
i need the program to print the longest word of the list.
word in the output appears on a separate line and word order in the output is in the order Llachsicografi costs.
for example:
the in put is:
kaka pele ronaldo beckham zidane messi rivaldo gerrard platini
and the output is :
beckham
gerrard
platini
rivaldo
ronaldo

thank you,
for helping yair