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

Example Input: The introduction of economic methods for the liquefaction of natural gas has resulted in natural gas becoming a primary energy source that requires to be transported and which is growing in importance.
Example Output: Inkcazo yeendlela zoqoqosho zokunyibilikisa umoya odaliweyo zibe nomphumela wokuba umoya odaliweyo yimvelaphi yamandla okuqala efuna ukuhanjiswa eya ikhula ekubalulekeni.

Example Input: Ships that are used solely for feeder purposes will also in future not have speeds in excess of 12 to 15 knots.
Example Output: Inqanawa zisetyenziselwa ukuba zinike kwaye kwixa elizayo akufuneki zibe nasantya esingaphezulu kweshumi elinesibini ukuya kwishumi elinesihlanu sesantya esibekelweyo senqanawa.

Example Input: The vessel is then towed or push-towed to its destination by a tug.
Example Output:
Inqanawa ke ngoko itsalwa okanye ityhalelwa kwisikhululo sayo ngotsalo olunamandla