ate ▁B ogo ’ s ▁city hood ▁The ▁B ogo ▁Times ▁▁▁ ▁Category : C ities ▁in ▁C eb u ▁Category : Pop ulated ▁places ▁established ▁in ▁ 1 8 5 0 ▁Category : 1 8 5 0 ▁establish ments ▁in ▁the ▁Philippines <0x0A> </s> ▁A ▁programming ▁language ▁consists ▁of ▁a ▁grammar / syntax ▁plus ▁an ▁execution ▁model . ▁ ▁The ▁execution ▁model ▁spec ifies ▁the ▁behavior ▁of ▁elements ▁of ▁the ▁language . ▁By ▁applying ▁it , ▁one ▁can ▁derive ▁the ▁behavior ▁of ▁a ▁program ▁that ▁was ▁written ▁in ▁terms ▁of ▁that ▁programming ▁language . ▁For ▁example , ▁ ▁Oper ational ▁Sem antics ▁is ▁one ▁method ▁of ▁specifying ▁a ▁language ' s ▁execution ▁model . ▁The ▁observed ▁behavior ▁of ▁a ▁running ▁program ▁must ▁match ▁the ▁behavior ▁derived ▁from ▁the ▁execution ▁model . ▁ ▁An ▁execution ▁model ▁covers ▁things ▁such ▁as ▁what ▁is ▁an ▁ind iv is ible ▁unit ▁of ▁work , ▁and ▁what ▁are ▁the ▁constraints ▁on ▁the ▁order ▁in ▁which ▁those ▁units ▁of ▁work ▁take ▁place . ▁For ▁example , ▁the ▁addition ▁operation ▁is ▁an ▁ind iv is ible ▁unit ▁of ▁work ▁in ▁many ▁languages , ▁and ▁in ▁sequ ential ▁languages ▁such ▁units ▁of ▁work ▁are ▁const rained ▁to ▁take ▁place ▁one ▁after ▁the ▁other . ▁ ▁In ▁particular , ▁the ▁C ▁programming ▁language , ▁has ▁a ▁concept ▁called ▁a ▁statement . ▁The ▁language ▁specification ▁defines ▁a ▁statement ▁as ▁a ▁chunk ▁of ▁syntax ▁that ▁is ▁terminated ▁by ▁a ▁"; ". ▁The ▁language ▁spec ▁then ▁says ▁that ▁execution ▁of ▁the ▁program ▁proceed s