In a certain code language, 'BONE' is written as 'F15R5'. How will 'NOSE' be written in that language?

R15W5 R61W5 R51W5 R5W51

R15W5

In the code language, odd letters are replaced by letters four places ahead in the alphabet series and even letters are replaced by their place values, such that: The code for 'NOSE' is: