Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| P.S. # | School Name | Neighborhood | Low Grade | High Grade | Year Closed | Building Status |
| --- | --- | --- | --- | --- | --- | --- |
| 1 | School 1 | Lakeview | K | 8 | 1976 | Demolished |
| 2 | School 2 | Downtown | K | 8 | 1961 | Demolished |
| 4 | Harbor Heights Elementary School | First Ward | K | 8 | 2002 | Vacant |
| 5 | School 5 | Kaisertown | K | 8 | 1955 | Demolished |
| 7 | School 7 | Babcock | K | 8 | 1950 | Demolished |
| 8 | Follow Through Urban Learning Lab School | Masten Park | K | 8 | 2004 | Vacant |
| 9 | School 9 | Schiller Park | K | 8 | 1980 | Demolished |
| 10 | School 10 | Downtown | K | 8 | 1955 | Demolished |
| 11 | Poplar Academy | Schiller Park | K | 4 | 2009 | Vacant |
| 12 | Harriet Ross Tubman Early Childhood Center | Willert Park | K | 4 | 2005 | House Office of Special Education |
| 13 | School 13 | Downtown | K | 12 | 2003 | Private Apartments/Office Space |
| 14 | School 14 | Downtown | K | 8 | 1930s | Demolished |
| 15 | School 15 | Downtown | K | 8 | 1965 | Demolished |
| 16 | School 16 | Bryant | K | 8 | 1976 | Private Apartments |
| 20 | School 20 | Black Rock | K | 8 | 1935 | Demolished |
| 21 | School 21 | North Park | K | 8 | 1980 | Demolished |
| 22 | School 22 | Central Park | K | 8 | 1980 | Private Apartments |
| 23 | School 23 | Genesee Moselle | K | 8 | 1980 | Demolished |
| 24 | School 24 | Broadway-Fillmore | K | 8 | 2002 | Vacant |
| 25 | School 25 | Babcock | K | 8 | 1949 | Demolished |
| 26 | School 26 | Babcock | K | 8 | 1980 | Vacant |
| 28 | Triangle Academy | Triangle | K | 8 | 1949 | Houses Buffalo Public Schools' Department of Science |
| 29 | School 29 | South Park | K | 8 | 1980 | Houses South Buffalo Charter School |
| 30 | School 30 | Elmwood Village | K | 8 | 1976 | Demolished |
| 34 | School 34 | First Ward | K | 8 | 1976 | Demolished |
| 35 | School 35 | South Ellicott | K | 8 | 1933 | Demolished |
| 36 | Days Park Early Childhood Center | Allentown | PreK | 4 | 2009 | Houses Elmwood Village Charter School |
| 40 | School 40 | Babcock | PreK | 6 | 2006 | Houses The Academy School 171 |
| 41 | School 41 | Johnson | PreK | 8 | 1976 | Demolished |
| 42 | School 42 | Black Rock | PreK | 8 | 1979 | Community Center/Apartments |
| 44 | Lincoln Academy | Lovejoy | K | 8 | 2005 | Houses Alternative High School |
| 47 | School 47 | Willert Park | PreK | 8 | 1978 | Demolished |
| 48 | School 48 | Masten Park | K | 8 | 1979 | Demolished |
| 49 | School 49 | Front Park | K | 8 | 1980 | Community Services building |
| 50 | School 50 | Emsilie | Special | Education | 1975 | Demolished |
| 51 | Black Rock Academy | Black Rock | PreK | 8 | 2005 | Vacant |
| 52 | School 52 | Forest | K | 8 | 1980 | Demolished |
| 55 | School 55 | Broadway-Fillmore | K | 8 | 1955 | Demolished |
| 56 | School 56 | Albright | PreK | 8 | 2007 | Vacant |
| 57 | Broadway Village Elementary School | Broadway-Fillmore | PreK | 6 | 2003 | Vacant |
| 58 | School 58 | Broadway-Fillmore | K | 8 | 1961 | Demolished |
| 59 | School 59 | MLK Park | K | 8 | 1976 | Demolished |
| 60 | Riverside Academy | Riverside | PreK | 4 | 2002 | Renovation |
| 62 | School 62 | MLK Park | K | 8 | 1980 | Houses Crucial Human Services |
| 63 | Campus North School | LaSalle | PreK | 8 | 2007 | Vacant |
| 70 | Indian Park Academy | Cazenovia Park | K | 8 | 2002 | Vacant |
| 71 | WEB Early Childhood Center | Schiller Park | PreK | 4 | 2007 | Vacant |
| 73 | School 73 | Columbus | K | 8 | 1970 | Demolished |
| 75 | School 75 | Emslie | K | 8 | 1979 | Vacant |
| 77 | School 77 | Front Park | PreK | 4 | 2006 | Vacant |
| 78 | Montessori E.C.C. 78 | LaSalle | PreK | 8 | 2008 | Vacant |
| 79 | School 79 | Military | K | 8 | 1976 | Northwest Community Center |
| 83 | School 83 | University Heights | K | 4 | 1976 | Houses Anderson Gallery for University at Buffalo |
| 85 | School 85 | Kensington | K | 4 | 1976 | Houses Community Charter School |
| 86 | St. Lawrence Academy | Starin Central | PreK | 4 | 2004 | Houses BPS' Adult Learning Program |
| 87 | School 87 | Willert Park | 5 | 12 | 2007 | Vacant |
| 88 | School 88 | North Park | K | 4 | 1979 | North Buffalo Community Center |
| 93 | School 93 | Hamlin Park | K | 4 | 1975 | Community Action Organization |
| 96 | Campus West School | Black Rock | PreK | 8 | 2011 | Used by Buffalo State College |
| 142 | Fulton Academic Complex | Perry | K | 8 | 1982 | Opportunity Center |
| 171 | WEB Middle School | Schiller Park | 5 | 8 | 2006 | Vacant |
| 192 | Buffalo Traditional School | Masten Park | 5 | 12 | 2005 | Houses Buffalo Academy for Visual & Performing Arts |
| 202 | Grover Cleveland High School | Front Park | 9 | 12 | 2011 | Houses The International Preparatory School |
| 203 | Kensington High School | Kenfield | 9 | 12 | 2003 | Houses Frederick Law Olmsted High School |
| 302 | Emerson Vocational High School | Emerson | 9 | 12 | 2002 | Houses Harvey Austin School |
| 306 | Seneca Vocational High School | Grider | 9 | 12 | 2003 | Houses Math, Science & Technology Preparatory School |
| 307 | Buffalo Vocational Technical Center | MLK Park | 9 | 12 | 2003 | Houses East High School |
Question:
how many schools were turned into private apartments?
Answer:
3