Let's break down the coding pattern:
- "good and bad" is coded as "123"
- "bad is ugly" is coded as "245"
- "good is fair" is coded as "436"
Now, let's try to match the words with the numbers:
- "good" corresponds to 1 in both "123" and "436"
- "bad" corresponds to 2 in both "123" and "245"
- "and" corresponds to 3 in "123"
- "is" corresponds to 4 in both "245" and "436"
- "ugly" corresponds to 5 in "245"
- "fair" corresponds to 6 in "436"
So, "fair" is coded as 6