Dealing with the "symbol" output of coll
Any message that consists of a single word is a message of type symbol (as opposed to int or float or list or some other word followed by other items). The coll object explicitly puts the word symbol ahead of its output if the output is a single word. The advantage of that is that you can detect single-word outputs as being different from all other outputs, by using a route symbol object. The disadvantage is that if you don’t want to do that, you have that annoying word "symbol" there where you weren’t expecting it. Fortunately, the solution for that is also to use a route symbol object, and connect both of that object’s outlets to the same destination inlet, as shown here.