The conversation between human and AI assistant.
[|Human|] Replace the underlined words in the sentence with synonyms that carry the same meaning.

Input: I can't comprehend the complexity of the task.
[|AI|] I can't understand the intricacy of the task.
[|Human|] 
Replace the underlined words in the sentence with synonyms that carry the same meaning.

Input: I can't comprehend the complexity of the task.