how to count "exampleword" in tweet

hello again;Im sorry to I asked the same question , but I need some help for my project and ı cant continue...Anybody help me?How can I count "HASTAGHWORD" at each tweets in rapid miner?which operator can help me?ı didnt use Exel , this picture is just for example...I will got tweets with Search tweet Operator, after that ı will count some words,on the Search tweet dataset.Finally ı will generate a new column and ı will add this value of counter to my new column for each row(each tweets)...Please help me ; I must do it this week!:[