TASK 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.
PROBLEM: the images taken after the probe 's landing show a flat plain covered in pebbles.

SOLUTION: images taken after the probe 's landing show a flat plain covered in pebbles.

PROBLEM: each entry has a datum -lrb- a nugget of data -rrb- which is a copy of the datum in some backing store.

SOLUTION: each entry has a data which is a copy of the data in some backing store.

PROBLEM: several marsupial herbivores , notably koalas and some possums , are relatively tolerant of it.

SOLUTION:
some marsupial herbivores , notably koalas and some possums , are somewhat liberal of .