Definition: In this task, you are given a sentence or phrase in Xhosa. You must translate it to English in a way that is equivalent in terms of meaning and grammatically correct.

Positive Example 1 -
Input: Ulwakhiwo neempawu zentsinga zemifuno.
Output: Construction and characteristics of vegetable fibre cordage.

Positive Example 2 -
Input: Ukuphatheka kwentsinga zemifuno
Output: Handling of vegetable fibre cordage.

Negative Example 1 -
Input: Ukuphatheka kwentsinga ezenziwe ngabantu.
Output: Handling of man-made fibre cordage.

Negative Example 2 -
Input: Ulwakhiwo neendidi.
Output: Building and types.

Now complete the following example -
Input: Zigqeloziwe kwizithuba ezibhekele ngokulinga neyo imingxunya yafakwa ihenjisi ezibhenguzaye ekuthiwu lizibuke elikhululekileyo, ukuvumela ukuphuma kwamenzi ebenyene ngaxeshikweni inqahowe iselwandle.
Output: They are pierced at intervals with openings fitted with hinged flaps called freeing ports, to allow the escape of any water shipped in a sea-way.