Directions (1-5): Study the given information carefully to answer the given questions.

In a certain code language, 

‘common exam to all’ is written as ‘es fr ba pt’, 

‘all gather in exam’ is written as ‘ch ba mo fr’, 

‘gather to nominate persons’ is written as ‘re dv ch gi’ and 

‘nominate chairman in all’ is written as ‘mo gi fr yu’.

What is the code for ‘exam’ in the given code language?