Semantic ambiguity occurs when there are different meanings or uses of a word, and syntactic ambiguity occurs when the arrangement of words creates ambiguity.
The first example is a case of semantic ambiguity because the meaning of "eye drops" may be that "eye" is a noun, and "drops" is a verb, or it may be that "eyedrops" is one word, which is a noun.
The second example is a semantic ambiguity, too, based on the two different meanings of the word "appeal." One meaning is that one is asking someone for something, for example,"I...
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