             contentType: MediaType.Plain.rawValue,
             charset: "UTF-8",
             language: "en-us",
-            content: kennedySpeech!,
+            content: kennedySpeech,
             parentID: "",
             reply: false,
             forward: false)
         
         // analyze duplicate content items
-        service!.getProfile([contentItem, contentItem]) { profile, error in
+        service.getProfile([contentItem, contentItem]) { profile, error in
             
             // verify expected response
             XCTAssertNotNil(profile)

        let description = "Try to analyze text that is too short (less than 100 words)."
        let expectation = expectationWithDescription(description)
        
        service!.getProfile(mobyDickIntro!) { profile, error in
            // verify expected response
            XCTAssertNil(profile)
            XCTAssertNotNil(error)

        let expectation = expectationWithDescription(description)
        
        // analyze speech
        service.getProfile(kennedySpeech) { profile, error in
            
            // verify expected response
            XCTAssertNotNil(profile)
