Identify if the sentence is a compound or a complex sentence.
The movie was long, but interesting.
The sentence "The movie was long, but interesting." is a compound sentence because it consists of two independent clauses ("The movie was long" and "interesting") joined together by a coordinating conjunction ("but").
Complete the following task based on the instruction and optional input provided.### Instruction:
Identify if the sentence is a compound or a complex sentence.

### Input:
The movie was long, but interesting.

### Output:
The sentence "The movie was long, but interesting." is a compound sentence because it consists of two independent clauses ("The movie was long" and "interesting") joined together by a coordinating conjunction ("but").