tokens: Foxp1 and Foxp2 are expressed at high levels in the lung as early as E12 .5 of mouse development with Foxp2 expression restricted to the airway epithelium .
folded_tokens: foxp1 and foxp2 be express at high level in the lung as early as e12 .5 of mouse development with foxp2 expression restricted to the airway epithelium .