How many party classifications are there for the senator from Canton? 
CREATE TABLE table_26129220_2 (party VARCHAR, residence VARCHAR)
SELECT party FROM table_26129220_2 WHERE residence = "Canton"
### Context: CREATE TABLE table_26129220_2 (party VARCHAR, residence VARCHAR) ### Question: How many party classifications are there for the senator from Canton?  ### Answer: SELECT party FROM table_26129220_2 WHERE residence = "Canton"