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Ex2 : 1 . bookshelp⇨......2.leaf➪......3.tree➩ ......4.class➩ .....5.class room➩......6.couch➩......7.shident➩.....8.teacher➩......9.house ➩.....10.rubber➩......11.desk➩.....12.chair➩......13.laptop➩......14.child➩.....15food➩.....