'Horse of another color' is the opposite expression from Shakespeare's 'a horse of that color' in the Twelfth Night Act 2 Scene 3 where Maria told Sir Toby Belch that her purpose was indeed a horse of that color which meant that Sir Toby Belch got the same idea as hers. So, 'horse of another color' is an idea different from the other.
Explain to the caller this will take you a little bit to get the answer they need and ask if they want to hold or receive a call back.
The coordinating conjunctions are: for, and, yet, so
