<http://webisa.webdatacommons.org/20462485>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/20462485>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/464780395>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/20462485> .
<http://webisa.webdatacommons.org/20462485>	<http://www.w3.org/ns/prov#value>	"FIGS. 8A and 8B are a flow chart depicting the method of controlling the fire door control system when an alarm condition 512 is received in the controller as shown in an upper portion of FIG. 8A. When according to step 512 an alarm condition signal is received in the controller, the controller initiates a step 515 of checking to see if the door is open." .
<http://webisa.webdatacommons.org/prov/464323334>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/20462485> .