[Python] Count of Combination of bigrams

I have create a dataset as follows using bigrams

index product_action
('customer', 'called') action
('customer', 'service') action
('blue', 'dress') product
('the', 'service') product
('to', 'complain') action
('complain', 'about') action
('service', 'received') action
('the', 'dress') product

I want to know if in each sentence how many times the combination has occured for the entire dataset

I have tried to use a count on the bigram

def get_bigrams(text): tokens = nltk.word_tokenize(text.lower()) return list(ngrams(tokens, 2))

def count_bigrams(text, bigram): bigrams = get_bigrams(text) return bigrams.count(bigram)

The dataset I have in mind is as follows:

product action count
('blue', 'dress') ('customer', 'called') 10

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