yarn-floss-yawn

yarn
pitch a story/line/yarn (to sb)
(informal) （对某人）编谎话
to tell sb a story or make an excuse that is not true
Craft Resources also sells yarn and embroidery floss.
工艺人员服务公司也售卖纱线和绣花丝线。

yawn
Her yawn was a Pavlovian(巴甫洛夫式) response to my yawn.
她打哈欠是对我打哈欠的条件反射。