1. A method of processing data, the method comprising: identifying a set of seed words comprising words defined as either positive words or negative words; extracting, from a set of data, adjectives linked to the set of seed words with “and”; extracting, from the set of data, adjectives linked to the set of seed words with “but”; determining a first value indicating a first frequency with which the adjectives are linked to the set of seed words with “and”; determining a second value indicating a second frequency with which the adjectives are linked to the set of seed words with “but”; and calculating, by a processor, sentiment scores for each adjective of the set of data based on the first value and the second value.