How to return frequency of each word of a variable in SAS?

text_mining
frequency
sas

#1

Hi,
I have a table that has below variables. Application_ID, Name, Age, Gender, Qualification, Course, Course_Type, Comments. Now i want to analyze my comment field. While doing this, first step i want to perform analyze frequency of words.

Data Set

Application_ID  Comments
10001          This course is great. 
10002          Good one, Need to add more videos compare to text
10003          Add more videos to take it to next level

Please help me to write SAS statement for returning frequency of words.

Regards,
Steve