To solve this coding puzzle, we need to identify the pattern used to transform FURNITURE into RUFTINERU.

Decoding the FURNITURE Pattern

Let's analyze the transformation of FURNITURE:

• Original Word: F U R N I T U R E
• Coded Word: R U F T I N E R U

We can observe that the word is divided into three groups of three letters each:

• Group 1: FUR
• Group 2: NIT
• Group 3: URE

Now, let's see how each group is transformed:

• Group 1 (FUR) becomes RUF. This is the reverse of the original group.
• Group 2 (NIT) becomes TIN. This is also the reverse of the original group.
• Group 3 (URE) becomes ERU. This is again the reverse of the original group.

The pattern is to divide the word into groups of three letters and reverse the order of letters within each group.

Applying the Pattern to FOUNTAINS

The word to be coded is FOUNTAINS. It also has 9 letters, so we can apply the same grouping and reversing pattern.

• Original Word: F O U N T A I N S

Divide the word into three groups of three letters:

• Group 1: FOU
• Group 2: NTA
• Group 3: INS

Now, reverse the letters within each group:

• Group 1 (FOU) reversed becomes UOF.
• Group 2 (NTA) reversed becomes ATN.
• Group 3 (INS) reversed becomes SNI.

Combine the reversed groups:

• Combined Coded Word: UOF + ATN + SNI = UOFATNSNI

Therefore, FOUNTAINS will be written as UOFATNSNI in this code language.