Question

Hello 

Please help me, I am confused. 

As you know some times we can 'of' in a noun phrase by reversing the nouns order eg.

a train of goods => a goods train

If I want to mention a definite  'goods train' I can say 

the goods train

now, the question, if I need to mention a  a particular train carring a  a particular goods

Do I have to say "the train of the goods"? or I can say "the goods trains"

thanks a lot

Answer 1

You would say the 'goods train'.

 

In English we don't usually say the something of something.

Answer 2

If you have some watermelons, and you want to ship them to your friend by train, you would write:

"I will ship you some watermelons by train.  I will call it the watermelon train."  

You would not write: "I will call it a train of watermelons." because watermelons cannot be connected to make a train.