sentence: Firstly , organizing collecting garbage . for example , red box for medical rubbish , because it is dangerous , it is toxic materials , yellow box for plastic , white box for glass , and pink box for other trash .
modified: firstly , organizing collecting garbage .for example , red box for medical rubbish , because it is dangerous , it is toxic materials , in yellow box for plastic , white box for glass , and pink box for other trash .
transformation: ORTH, ORTH, PREP