diff --git a/pylings/exercises/01_variables/variables5.py b/pylings/exercises/01_variables/variables5.py
index a311db7..3b7808d 100644
--- a/pylings/exercises/01_variables/variables5.py
+++ b/pylings/exercises/01_variables/variables5.py
@@ -5,6 +5,7 @@
 Uncomment and complete each section to pass all tests.
 
 In DNA each letter is defined as a `base`, we can interchange `base` with `index`
+
 """
 
 # === DNA STRING INDEXING ===
@@ -12,8 +13,11 @@
 
 dna_sequence = "AGCTTAGGCTA"
 
+# EXAMPLE: To get the seventh base of the dna_sequence
+# seventh_base = dna_sequence[8]
+
 # TODO: Extract the first base of dna_sequence
-first_base = __ 
+first_base = __
 
 # TODO: Extract the last base of dna_sequence
 last_base = __  
@@ -59,4 +63,4 @@
 print(f"Middle base:{middle_bases}")
 print(f"Last Five base:{last_five_bases}")
 
-print(f"DNA Sequence Reversed: {reversed_dna}")
\ No newline at end of file
+print(f"DNA Sequence Reversed: {reversed_dna}")