नीचे दिए गए पांच अक्षरों में से चार किसी न किसी रूप में समान हैं और इसलिए वे अपना एक समूह बनाते हैं। कौन सा एक इस समूह से संबंधित नहीं है? E, K, W, Y, Q

Based on the English alphabetical order, three of the following four letter-clusters are alike in a certain way and form a group. Which one does not belong to that group?

Based on the English alphabetical order, three of the following four letter-cluster pairs are alike in a certain way and thus form a group. Which letter-cluster pair DOES NOT belong to that group? (Note: The odd one out is not based on the number of consonants/vowels or their position in the letter-cluster.)