def nombre_vocals(s):
    vocals = 'aeiouAEIOU'
    nv = 0
    for c in s:
        if c in vocals:
            nv = nv+1
    return nv

def vocals_dins_preguntes(s):
    la = s.split(':')
    nvoc = 0
    for e in la:
        if '?' in e:
            lc = e.split('?')
            nvoc = nvoc + nombre_vocals (lc[0])
    return nvoc