import data

def list_have_location(l):
    for d in l:
        if not data.have_location(d):
            return False
    return True

def list_have_continue_maybe_indoor(l):
    last_indoor = False
    for d in l:
        indoor = data.maybe_indoor(d)
        if indoor and last_indoor:
            return True
        last_indoor = indoor
    return False

def check_entry(before, curr, after):
    if not list_have_location(before):
        return None
    if not data.have_location(curr):
        return None
    if not data.maybe_entry(curr):
        return None
    if data.maybe_entry(before[-1]):
        return None
    if not list_have_continue_maybe_indoor(after):
        return None
    return before[-1]

def recognize_entries(l):
    ret = []
    for i in range(60, len(l) - 12):
        x = check_entry(l[i-60:i], l[i], l[i+1:i+13])
        if not x is None:
            ret.append(x)
    return ret