Invalid parameter: null 
Usage:
	GET or POST parameters: {tool}, {input} and {token}
		 token: you can find your token on your login space
		 tool: ner, morphanalyzer, isturkish,  morphgenerator, sentencesplitter, tokenizer, normalize, deasciifier, Vowelizer, DepParserFormal, DepParserNoisy, spellcheck, disambiguator, pipelineFormal, pipelineFormalwSentenceSplitter, pipelineNoisy, pipelineNoisywSentenceSplitter, pipelineSSMorph
		 input: utf-8 string
The response is a text/plain encoded in UTF-8

Example: http://tools.nlp.itu.edu.tr/SimpleApi?tool=ner&input=merhaba&token=XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Explanation:
pipelineSSMorph: SentenceSplitter | Tokenizer | Morphological Analyzer | Morphological Disambiguator