Facebook tightened the reins Thursday on its research methods in the wake of an outcry by members who felt manipulated by a secret study into how posts affect moods.
Japan today
Ｑ：次の動詞の Ｓ「Ｖ」Ｏ は何ですか？
A:
Facebook [tightened] the reins
OK！(members) who [felt] manipulated
OK！posts [affect] moods
OK！
Ｑ：次の準動詞の Ｓ「Ｖ」Ｏ は何ですか？
A:
members (in the) [wake] (of) an outcry
これは名詞ですね。(members) who [manipulated] Oなし
OK！
Ｑ：「前」＋Ｏ のメインの名詞は何ですか？説明しているのは何ですか？
A:
Facebook tightened the reins ← [on] (its research) methods
OK！Facebook tightened the reins ← [in] the wake (of an outcry)
OK！wake ← [of] an outcry
OK！outcry ← [by] members
OK！members felt manipulated ← [by] a secret study
OK！secret study ← [into] how posts affect moods.
OK！
Ｑ：この関係詞の先行詞は何ですか？関係節で抜けているＳかＯはどこですか？
A:
members [who] felt manipulated先行詞 members
抜けているものはS
（S抜けている） [felt] manipulated
OK！
Ｑ：説明関係を意識して文を読みます。
Facebook tightened the reins Thursday on its research methods in the wake of an outcry by members who felt manipulated by a secret study into how posts affect moods.
A:
Facebook [tightened] the reins (Thursday)
on (its research) methods
in the wake (of an outcry by members)
members who [felt] manipulated
by (a secret) study
into how posts [affect] moods.