Your program accepts a series of commands, one per line. The commands are described by the following syntax:
command ::= birth ::= death ::= ancestors ::= descendants ::= QUIT birth ::= BIRTH child : date : mother : father death ::= DEATH person : date ancestors ::= ANCESTORS person descendants ::= DESCENDANTS person child ::= name mother ::= name father ::= name person ::= name date ::= name name ::= <<any sequence of characters not beginning or ending with a space or containing a colon>>
Spaces in the input are ignored except where they appear within name. The BIRTH and DEATH commands record the birth and death of an individual. You may assume that each individual has a unique name. The ANCESTORS and DESCENDANTS commands are queries: they print a family tree or a reverse family tree for the named person, using the BIRTH and DEATH information entered by previous commands. The QUIT command indicates the end of input.
You may assume that no input line exceeds 100 characters, and that there are not more than 250 lines of input. You may assume that DEATH, ANCESTORS, and DESCENDANTS commands refer to a name for which a BIRTH command has previously been given. QUIT appears only as the last line of input.
The BIRTH, DEATH, and QUIT commands have no output. For each ANCESTORS (DESCENDANTS) command, print the following information
Print a line containing “ANCESTORS of” (“DESCENDANTS of”) followed by the person’s name
Indented 2 spaces from the previous line, print the person’s first parent (child) in alphabetical order, followed by the parent’s (child’s) birth date, followed by a space, followed by a hyphen, and, if the parent (child) has died, another space and the date of death. If there is no birth record for the parent (child), print the name alone.
Print the ancestry (descendant) information for the parent (child), indented another 2 spaces, using these same steps (i.e. steps 2-4).
Repeat steps 2-4 for the remaining parent (children). Indentation should be the same as for the previous parent (child).
Leave an empty line between the output sequences for successive commands.
|Sample Input 1||Sample Output 1|
BIRTH John Doe : January 7, 1599 : Jane Doe : Adam Doe BIRTH Mary Worth : May 18, 1666 : Jane Doe : Adam Doe BIRTH Casper Ghost : Jan 2, 1959 : Mary Worth : John Doe DEATH Mary Worth : Jan 3, 1959 ANCESTORS Casper Ghost DESCENDANTS John Doe QUIT
ANCESTORS of Casper Ghost John Doe January 7, 1599 - Adam Doe Jane Doe Mary Worth May 18, 1666 - Jan 3, 1959 Adam Doe Jane Doe DESCENDANTS of John Doe Casper Ghost Jan 2, 1959 -