Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The popularity of ASL owes a lot to this book. . .

. . . However, Joy of Signing does not present ASL (American Sign Lanuage) as much as signed Enlish. This may not mean a lot to many people - signing is signing, right?No. ASL is a real language with its own grammar, syntax and vocabulary. Signed English is not. Signed English is a pidgin language which borrows much from ASL but attempts to communicate in English.Many deaf people will be able to communicate with you, using signed English, but many others will not. Mostly, communicating in signed English has the potential to be akward for all involved, as nobody in the conversation will be communicating in their native language.