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In this mini review , we summarize our recent studies on transition metal - catalyzed green and atom efficient transformations of P ( O ) - H bonds to various versatile organophosphorus compounds , including the highly regio - and stereoselective P ( O ) - H additions to carbon - carbon unsaturated compounds , asymmetric hydrophosphorylation reactions , and dehydrogenative coupling reactions of P ( O ) - H compounds with carbon - H and heteroatom - H compounds .
 Chemical: transition metal; Chemical: P ( O ) - H; Chemical: organophosphorus; Chemical: P ( O ) - H; Chemical: carbon; Chemical: carbon; Chemical: P ( O ) - H; Chemical: carbon; Chemical: H; Chemical: H
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: transition metal; Chemical: P ( O ) - H; Chemical: organophosphorus; Chemical: P ( O ) - H; Chemical: carbon; Chemical: carbon; Chemical: P ( O ) - H; Chemical: carbon; Chemical: H; Chemical: H