Given a sentence in English, provide an equivalent paraphrased version from the original that retains the same meaning.

[Q]: Assuming that the causal relationships are linear , this background knowledge can be expressed in the following structural equation model ( SEM ) specification .
[A]: Assuming that the causal relationships are linear , this background knowledge can be expressed in the following SEM specification ( Structural Equalization Model ) .


[Q]: Earlier in 209 , Sun Quan Sun married Quan ’ s younger sister , Lady Sun , to strengthen the alliance between him and Liu Bei .
[A]: Earlier in 209 , Sun Quan married Sun Quan 's younger sister Lady Sun to strengthen the alliance between him and Liu Bei .


[Q]: They could instead have been relatives , perhaps members of a family bonded by blood to serve Dracula .
[A]:
They could have been relatives instead , perhaps members of a family connected by blood to serve Dracula .


