<gh_stars>1-10
##
foto_1 = ruleGMLString("""rule [
	ruleID "foto O2 "  # O=O + Hf -> O + O 
	left [

		node [ id 1 label "O" ]
		node [ id 2 label "O" ]	
		edge [source 1 target 2 label "="]
		node [ id 4 label "Hf" ]  
	]     
	right [
		node [ id 1 label "O" ]	
		node [ id 2 label "O" ]
	
	]
		
		  
]""")

##
foto_1 = ruleGMLString("""rule [
	ruleID "foto O2 "  # O=O + Hf -> O + O 
	left [

		node [ id 1 label "O" ]
		node [ id 2 label "O" ]	
		edge [source 1 target 2 label "="]
		node [ id 4 label "Hf" ]  
	]     
	right [
		node [ id 1 label "O" ]	
		node [ id 2 label "O" ]
	
	]
		
		  
]""")
## rule [ 	ruleID "foto O2 "  # O=O + Hf -> O + O  	left [  		node [ id 1 label "O" ] 		node [ id 2 label "O" ]	 		edge [source 1 target 2 label "="] 		node [ id 4 label "Hf" ]   	]      	right [ 		node [ id 1 label "O" ]	 		node [ id 2 label "O" ] 	 	] 		 		   ]