DTM को मैट्रिक्स की तरह परखना

# Assign the DTM to dtm_twitter
dtm_twitter <- tidy_twitter_subset %>% 
  count(word, tweet_id) %>% 
  # Cast the word counts by tweet into a DTM
  ___(___)

# Coerce dtm_twitter into a matrix called matrix_twitter
___ <- ___(___)

# Print rows 1 through 5 and columns 90 through 95
___