Here's some Python code to convert a passage of text into first-letter sequences to facilitate memorization:

mnemonic.py

def first_letter_mnemonic(text):  
    words = text.split()
    letters = []
    for word in words:
        letters.append(word[0])
        
        if word[-1] in ',-': # inline punctuation
            letters.append(word[-1])
        
        elif word[-1] in '.;:?!': # delimiting punctuation
            letters.append(word[-1] + ' ')

    return (''.join(letters)).strip()

print first_letter_mnemonic('<paste_verse_here>')