In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.

iPS cells closely resemble embryonic stem cells , the " in vitro " equivalent of the part of the blastocyst ( the embryo a few days after fertilization ) which grows to become the embryo proper .
iPS cells are like embryonic stem cells from a blastocyst ( the embryo a few days after fertilization ) .

Brannan urged Young to bring the Mormon pioneers to California as was previously planned , but Young rejected the proposal in favor of settling in what is present-day Utah .
Brannan wanted Young to bring the Mormons to California , but Young wanted to stay in Utah .

Haines ran away from home at the age of 14 , accompanied by an unidentified young man to whom Haines referred as his " boyfriend " .
Haines ran away from home at 14 with his boyfriend .