Definition: In this task, you're given a sentence and your task is to generate a simplified sentence that focuses on lexical paraphrasing from the original sentence given in the input.

Positive Example 1 -
Input: a georgian inscription around the drum attests his name.
Output: there is a georgian inscription around the drum to confirm his name.

Positive Example 2 -
Input: it is particularly famous for the cultivation of kiwifruit.
Output: it is mostly famous for the growing of kiwifruit.

Negative Example 1 -
Input: a hunting dog refers to any dog who assists humans in hunting.
Output: a hunting dog is a dog that refers humans in hunting.

Negative Example 2 -
Input: in return , romania ceded three southern districts of bessarabia to russia and acquired dobruja.
Output: in return , romania ceded three southern districts of bessarabia to russia and acquired dobruja.

Now complete the following example -
Input: the higgs boson is the only standard model particle that has not yet been observed.
Output: 



Output:
the higgs boson is the only standard model particle that has not yet been watched.
the higgs boson is the only standard model particle that has not yet been seen.
the higgs boson is the only standard model particle that is still unobserved.
the higgs boson is the only standard model particle that has not so far been discovered.
the higgs-boson is the only standard model particle that has n't been seen yet.
the higgs boson is the only normal modle object which has not yet been seen.
the higgs boson is the only standard model particle that has not been seen.
the higgs-boson is the only standard model particle that has not yet been seen.