ولقيِّم: and for a caretaker/ and for someone responsible of doing something: المسؤول عن شيء. "And the fifth planet that the little prince landed on was very strange because it was the smallest. It didn't have any space/ fit except for a pillar/ column with a lamp at the top of it, and for a caretaker who is responsible for turning that lamp on and off."

There's a missing letter, it's supposed to be القيّم not لقيّم which means "caretaker" , the full translation will be: "And the fifth planet, which the young prince landed on, was very strange, for it was the smallest of them, with no room except for one column with a lamp at its top, and the caretaker was entrusted with lighting the lamp and extinguishing it"

And was the fifth planet that was landing on it a little prince , extremely weird where the smallest one was not enough but/except a bar with lamp on the top and for its valuable , a contract had been made to him to light(turn on ) a lamp and turn off . (literal meaning) ولقيمته means for its valuable . و = and . the noun is قيمة = value and valuable = قيم adjective the right one is ولقيمته not ولقيم because it does not make any sense ...