def lwords(txt):
    for c in '.,:;?!"-_=()[]':
        txt= txt.replace(c, '')
    txt = txt.splitlines()
    lst=[]
    for i in txt:
        max=0
        txt=i.split()
        for x in txt:
            if len(x)>max:
                max= len(x) 
                lst=[x]
    return lst