diff --git a/README.md b/README.md
index 1ab39e0..3e054d0 100644
--- a/README.md
+++ b/README.md
@@ -33,13 +33,13 @@ List
 ```
 
 ```python
-sum_of_elements  = sum(<list>)
+sum_of_elements  = sum(<collection>)
 elementwise_sum  = [sum(pair) for pair in zip(list_a, list_b)]
-sorted_by_second = sorted(<list>, key=lambda el: el[1])
-sorted_by_both   = sorted(<list>, key=lambda el: (el[1], el[0]))
+sorted_by_second = sorted(<collection>, key=lambda el: el[1])
+sorted_by_both   = sorted(<collection>, key=lambda el: (el[1], el[0]))
 flattened_list   = list(itertools.chain.from_iterable(<list>))
 list_of_chars    = list(<str>)
-product_of_elems = functools.reduce(lambda out, x: out * x, <list>)
+product_of_elems = functools.reduce(lambda out, x: out * x, <collection>)
 no_duplicates    = list(dict.fromkeys(<list>))
 ```